Reef Central Online Community

Go Back   Reef Central Online Community > Marine Fish Forums > Reef Fishes
Blogs FAQ Calendar Mark Forums Read

Notices

User Tag List

Reply
Thread Tools
Unread 04/29/2017, 03:47 PM   #126
ThRoewer
Registered Member
 
ThRoewer's Avatar
 
Join Date: Jan 2015
Location: Fremont, CA
Posts: 9,555
One thing to consider with jawfish tanks is tank heigh. You need at least 4" for the sand bed and then at least a foot of water column on top of that. So a 40B with 16" total height is already cutting it close.

Sent from my XT1254 using Tapatalk


__________________
Pairs: 4 percula, 3 P. kauderni, 3 D. excisus, 1 ea of P. diacanthus, S. splendidus, C. altivelis O. rosenblatti, D. janssi, S. yasha & a Gramma loreto trio
3 P. diacanthus. 2 C. starcki

Current Tank Info: 200 gal 4 tank system (40x28x24 + 40B + 40B sump tank + 20g refugium) + 30x18x18 mixed reef + 20g East Pacific biotop + 20g FW +...
ThRoewer is offline   Reply With Quote
Unread 04/30/2017, 09:52 PM   #127
KingOfAll_Tyrants
Registered Member
 
KingOfAll_Tyrants's Avatar
 
Join Date: Aug 2003
Location: East Coast US
Posts: 95
Thanks, ThRoewer. I did see in an earlier post that you thought the 20L (13" from Aqueon, thus about 9" with a 4" sandbed) was too short and you thought a 55 or 75 (21" from Aqueon; 17" with a 4" bed with the luxury of making the bed taller); but thanks for the reminder. If I get the one of the tanks I'm thinking of (72X16X16 or 48X16X16) they'll be custom acrylic, so I may order a bit taller if I want. (24" is my absolute max, though - that's just about the length of my finger-to-armpit )

Also, thanks again for all the data in this thread; it's very useful. One opinion: I would think the BSJ lives mostly above the thermocline, so the sea surface temps (- maybe a few degrees) would be best for them. Thus, 20-24degrees C might be a good temperature range for them.

Finally, not to derail the thread, but since the Pearly Jawfish was mentioned, I did a bit of habitat research on them. Not only are they in most of the Carribean down to Brazil (to include the keys), but they go as far northwest as the Florida Middle Grounds (and thus probably up the Atlantic side until at least cape anaveral - maybe even further?) and are apparently fairly common on the LA, TX parts of the Gulf.


__________________
Purple tyrannosaurs. Yes....

Current Tank Info: In planning stages. Kessil 360we, eshopps rs-75 sump
KingOfAll_Tyrants is offline   Reply With Quote
Unread 05/03/2017, 11:34 AM   #128
Chasmodes
Registered Member
 
Chasmodes's Avatar
 
Join Date: Apr 2006
Location: Maryland
Posts: 1,322
ThRoewer, do you have any recent videos of your tank? What livestock do you have in there now?


__________________
Blennies Rock!

--Kevin Wilson

Current Tank Info: 101g 3'X3'X18" Cubish Oyster Reef Blenny tank, 36"X17"X18" sump
Chasmodes is offline   Reply With Quote
Unread 05/03/2017, 09:53 PM   #129
ThRoewer
Registered Member
 
ThRoewer's Avatar
 
Join Date: Jan 2015
Location: Fremont, CA
Posts: 9,555
Nothing recent. I plan to upgrade them to a 29 tall, but need to get the back wall done first (actually, first I need to figure out how to make the wall.)
The tank has right now not even light, just ambient light from the window and room.
Need to clean up a bit and take the time to shoot a new video.
The other fish in there are 3 East Pacific blennies, a pair of hancocki and an unidentified single.
Unfortunately the Pipefish and the eyebrow blennies didn't survive the lower winter temperatures.

Sent from my XT1254 using Tapatalk


__________________
Pairs: 4 percula, 3 P. kauderni, 3 D. excisus, 1 ea of P. diacanthus, S. splendidus, C. altivelis O. rosenblatti, D. janssi, S. yasha & a Gramma loreto trio
3 P. diacanthus. 2 C. starcki

Current Tank Info: 200 gal 4 tank system (40x28x24 + 40B + 40B sump tank + 20g refugium) + 30x18x18 mixed reef + 20g East Pacific biotop + 20g FW +...
ThRoewer is offline   Reply With Quote
Unread 09/06/2017, 02:32 PM   #130
ThRoewer
Registered Member
 
ThRoewer's Avatar
 
Join Date: Jan 2015
Location: Fremont, CA
Posts: 9,555
Sad news. The last weekend we had a crazy heatwave and of course it was a weekend were I wasn't home until late in the evening. When I came home Saturday night most of my tanks had a temperature of 33 °C (91 °F). While most fish, inverts and corals handled it surprisingly well, the 30 gallon tank with the BSJ went completely belly up and only one of the blennies survived.
I don't think that the temperature was the direct cause of death, but rather a lack of oxygen due to the fully covered tank and the rather low flow.



Sent from my XT1254 using Tapatalk


__________________
Pairs: 4 percula, 3 P. kauderni, 3 D. excisus, 1 ea of P. diacanthus, S. splendidus, C. altivelis O. rosenblatti, D. janssi, S. yasha & a Gramma loreto trio
3 P. diacanthus. 2 C. starcki

Current Tank Info: 200 gal 4 tank system (40x28x24 + 40B + 40B sump tank + 20g refugium) + 30x18x18 mixed reef + 20g East Pacific biotop + 20g FW +...
ThRoewer is offline   Reply With Quote
Unread 09/06/2017, 03:14 PM   #131
Chasmodes
Registered Member
 
Chasmodes's Avatar
 
Join Date: Apr 2006
Location: Maryland
Posts: 1,322
Ah man, so sorry to hear that!

We were at Myrtle Beach and spent an afternoon one day at the Ripley's Aquarium there, and they have a couple BSJ's in their reef tank. My family loved to see them so much that they want me to set up a tank and get some. I thought of your tank and how much I'd like to replicate that.

Hopefully, you can start anew.


__________________
Blennies Rock!

--Kevin Wilson

Current Tank Info: 101g 3'X3'X18" Cubish Oyster Reef Blenny tank, 36"X17"X18" sump
Chasmodes is offline   Reply With Quote
Unread 09/07/2017, 05:30 AM   #132
alton
Registered Member
 
alton's Avatar
 
Join Date: Jan 2005
Location: Zuehl, Texas
Posts: 4,460
My condolences, it is one of my favorite fish.


alton is offline   Reply With Quote
Unread 09/08/2017, 02:41 PM   #133
ThRoewer
Registered Member
 
ThRoewer's Avatar
 
Join Date: Jan 2015
Location: Fremont, CA
Posts: 9,555
I'm not sure if I get a new BSJ pair any time soon.
I have 3 Tiger jawfish and a pair of percula that need a new home and I'm thinking to remodel the tank for them.

Sent from my XT1254 using Tapatalk


__________________
Pairs: 4 percula, 3 P. kauderni, 3 D. excisus, 1 ea of P. diacanthus, S. splendidus, C. altivelis O. rosenblatti, D. janssi, S. yasha & a Gramma loreto trio
3 P. diacanthus. 2 C. starcki

Current Tank Info: 200 gal 4 tank system (40x28x24 + 40B + 40B sump tank + 20g refugium) + 30x18x18 mixed reef + 20g East Pacific biotop + 20g FW +...
ThRoewer is offline   Reply With Quote
Unread 09/09/2017, 05:53 AM   #134
ginpang
Registered Member
 
ginpang's Avatar
 
Join Date: Jul 2015
Posts: 612
Quote:
Originally Posted by ThRoewer View Post
Sad news. The last weekend we had a crazy heatwave and of course it was a weekend were I wasn't home until late in the evening. When I came home Saturday night most of my tanks had a temperature of 33 °C (91 °F). While most fish, inverts and corals handled it surprisingly well, the 30 gallon tank with the BSJ went completely belly up and only one of the blennies survived.
I don't think that the temperature was the direct cause of death, but rather a lack of oxygen due to the fully covered tank and the rather low flow.



Sent from my XT1254 using Tapatalk


So sad. Sorry for your loss.


Sent from my iPhone using Tapatalk


ginpang is offline   Reply With Quote
Unread 06/09/2019, 03:43 AM   #135
ThRoewer
Registered Member
 
ThRoewer's Avatar
 
Join Date: Jan 2015
Location: Fremont, CA
Posts: 9,555
Gonna start another round.
Saturday I got two for a good price together with an O. randalli male (finally!) and put them into a 29 gallon tank.
The BSJ went straight into the tank while I kept the randalli in an acclimatization box (he will later go to the tank with my 2 females).

Now I have to hope that I picked the right BSJ and actually got a male and a female...


__________________
Pairs: 4 percula, 3 P. kauderni, 3 D. excisus, 1 ea of P. diacanthus, S. splendidus, C. altivelis O. rosenblatti, D. janssi, S. yasha & a Gramma loreto trio
3 P. diacanthus. 2 C. starcki

Current Tank Info: 200 gal 4 tank system (40x28x24 + 40B + 40B sump tank + 20g refugium) + 30x18x18 mixed reef + 20g East Pacific biotop + 20g FW +...
ThRoewer is offline   Reply With Quote
Unread 06/10/2019, 08:59 PM   #136
ThRoewer
Registered Member
 
ThRoewer's Avatar
 
Join Date: Jan 2015
Location: Fremont, CA
Posts: 9,555
One of them is certainly a male and despite having their burrows close to each other they haven't killed each other yet. So I'm hopeful that I also picked the female right.

These two are not very good eaters. It's not that they are not interested, they just don't really go after food like mysis. They are much better with Tigger Pods - unfortunately the crazy heat today killed off my big culture.
Though, I'm not sure if it's lack of hunger or the fear of getting out of their holes. I kind of feel they are afraid that if they get out the other might steal their hole...

Sent from my XT1254 using Tapatalk


__________________
Pairs: 4 percula, 3 P. kauderni, 3 D. excisus, 1 ea of P. diacanthus, S. splendidus, C. altivelis O. rosenblatti, D. janssi, S. yasha & a Gramma loreto trio
3 P. diacanthus. 2 C. starcki

Current Tank Info: 200 gal 4 tank system (40x28x24 + 40B + 40B sump tank + 20g refugium) + 30x18x18 mixed reef + 20g East Pacific biotop + 20g FW +...
ThRoewer is offline   Reply With Quote
Unread 06/12/2019, 01:13 AM   #137
ThRoewer
Registered Member
 
ThRoewer's Avatar
 
Join Date: Jan 2015
Location: Fremont, CA
Posts: 9,555
Seems they needed a few days to settle in.
Today they went quite aggressively after the food.



The one on the left should be the male (brighter coloration in the front and more pointy head) and the one on the right should be the female (darker in coloration and with a more square head.)
I was a bit concerned about the current heat wave, but the evaporation chilling with a fan worked better than expected and kept their tank below 26°C while the garage was at a smoldering 34°C.


__________________
Pairs: 4 percula, 3 P. kauderni, 3 D. excisus, 1 ea of P. diacanthus, S. splendidus, C. altivelis O. rosenblatti, D. janssi, S. yasha & a Gramma loreto trio
3 P. diacanthus. 2 C. starcki

Current Tank Info: 200 gal 4 tank system (40x28x24 + 40B + 40B sump tank + 20g refugium) + 30x18x18 mixed reef + 20g East Pacific biotop + 20g FW +...
ThRoewer is offline   Reply With Quote
Unread 06/12/2019, 01:11 PM   #138
ThRoewer
Registered Member
 
ThRoewer's Avatar
 
Join Date: Jan 2015
Location: Fremont, CA
Posts: 9,555
BTW, Divers Den has right now what I believe to be a male and a female.

This should be a male:



https://www.liveaquaria.com/divers-d...potted-jawfish

And this should be a female:



https://www.liveaquaria.com/divers-d...potted-jawfish


Attached Images
File Type: jpg lg-0607191-181.jpg (66.8 KB, 103 views)
File Type: jpg lg-0607191-192.jpg (71.5 KB, 104 views)
__________________
Pairs: 4 percula, 3 P. kauderni, 3 D. excisus, 1 ea of P. diacanthus, S. splendidus, C. altivelis O. rosenblatti, D. janssi, S. yasha & a Gramma loreto trio
3 P. diacanthus. 2 C. starcki

Current Tank Info: 200 gal 4 tank system (40x28x24 + 40B + 40B sump tank + 20g refugium) + 30x18x18 mixed reef + 20g East Pacific biotop + 20g FW +...
ThRoewer is offline   Reply With Quote
Unread 06/13/2019, 05:38 AM   #139
alton
Registered Member
 
alton's Avatar
 
Join Date: Jan 2005
Location: Zuehl, Texas
Posts: 4,460
$500 for a pair is crazy! Funny BSJF where $60 and Gem tangs $2500. Supply and demand drives our market


alton is offline   Reply With Quote
Unread 06/13/2019, 09:04 AM   #140
ThRoewer
Registered Member
 
ThRoewer's Avatar
 
Join Date: Jan 2015
Location: Fremont, CA
Posts: 9,555
Quote:
Originally Posted by alton View Post
$500 for a pair is crazy! Funny BSJF where $60 and Gem tangs $2500. Supply and demand drives our market
My two cost me together what LA asks for one.
I kind of wonder why none of the big aqua farms has started breeding these. They can't be more difficult to breed than O. aurifons. Those are not (yet) commercially bred because they are too low in price. But BSJ have definitely hit the price where breeding could be profitable.

Sent from my XT1254 using Tapatalk


__________________
Pairs: 4 percula, 3 P. kauderni, 3 D. excisus, 1 ea of P. diacanthus, S. splendidus, C. altivelis O. rosenblatti, D. janssi, S. yasha & a Gramma loreto trio
3 P. diacanthus. 2 C. starcki

Current Tank Info: 200 gal 4 tank system (40x28x24 + 40B + 40B sump tank + 20g refugium) + 30x18x18 mixed reef + 20g East Pacific biotop + 20g FW +...
ThRoewer is offline   Reply With Quote
Unread 06/13/2019, 02:08 PM   #141
alton
Registered Member
 
alton's Avatar
 
Join Date: Jan 2005
Location: Zuehl, Texas
Posts: 4,460
http://www.reefsanctuary.com/forum/i...spot-club.147/
Great reading from many who tried to get babies from eggs. I was never lucky enough to get a mouth full of eggs from BSJF, but I did from Yellow heads. I just was never able to raise the fry.


alton is offline   Reply With Quote
Unread 06/13/2019, 02:34 PM   #142
ThRoewer
Registered Member
 
ThRoewer's Avatar
 
Join Date: Jan 2015
Location: Fremont, CA
Posts: 9,555
Quote:
Originally Posted by alton View Post
http://www.reefsanctuary.com/forum/i...spot-club.147/
Great reading from many who tried to get babies from eggs. I was never lucky enough to get a mouth full of eggs from BSJF, but I did from Yellow heads. I just was never able to raise the fry.
BSJ males actually don't keep the eggs in their mouth. That's why their heads are actually narrower than the heads of females.


__________________
Pairs: 4 percula, 3 P. kauderni, 3 D. excisus, 1 ea of P. diacanthus, S. splendidus, C. altivelis O. rosenblatti, D. janssi, S. yasha & a Gramma loreto trio
3 P. diacanthus. 2 C. starcki

Current Tank Info: 200 gal 4 tank system (40x28x24 + 40B + 40B sump tank + 20g refugium) + 30x18x18 mixed reef + 20g East Pacific biotop + 20g FW +...
ThRoewer is offline   Reply With Quote
Unread 06/15/2019, 02:25 AM   #143
ThRoewer
Registered Member
 
ThRoewer's Avatar
 
Join Date: Jan 2015
Location: Fremont, CA
Posts: 9,555
So far I have not observed a single burrow swap with these two, also no real aggression aside from a warning if one comes too close to the others burrow during feeding.



They also got well through the recent heat wave thanks to an improvised fan chiller. Despite the garage hitting smoldering 34°C their tank stayed at 25°C.
I have way too many tanks to get each of them a recirculation chiller and based on my experience this past week I'm gonna equip all my tanks with forced air evaporation chillers. Given that evaporating 1 gal. of water extracts around 8,000 BTU, this can actually be quite effective.


__________________
Pairs: 4 percula, 3 P. kauderni, 3 D. excisus, 1 ea of P. diacanthus, S. splendidus, C. altivelis O. rosenblatti, D. janssi, S. yasha & a Gramma loreto trio
3 P. diacanthus. 2 C. starcki

Current Tank Info: 200 gal 4 tank system (40x28x24 + 40B + 40B sump tank + 20g refugium) + 30x18x18 mixed reef + 20g East Pacific biotop + 20g FW +...

Last edited by ThRoewer; 06/15/2019 at 02:31 AM.
ThRoewer is offline   Reply With Quote
Unread 06/17/2019, 11:17 AM   #144
Chasmodes
Registered Member
 
Chasmodes's Avatar
 
Join Date: Apr 2006
Location: Maryland
Posts: 1,322
I'm happy to see that you have your BSJ tank up again. Love the vids! They have so much personality. It's amazing to me, as I watch them dart out and feed, how they can go in full speed reverse back into their hole, in strong current, and nearly every time, make the entry back in perfectly. Once in a while, if they get too far away, they miss, but not that often!


__________________
Blennies Rock!

--Kevin Wilson

Current Tank Info: 101g 3'X3'X18" Cubish Oyster Reef Blenny tank, 36"X17"X18" sump
Chasmodes is offline   Reply With Quote
Unread 06/17/2019, 05:41 PM   #145
ThRoewer
Registered Member
 
ThRoewer's Avatar
 
Join Date: Jan 2015
Location: Fremont, CA
Posts: 9,555
Quote:
Originally Posted by Chasmodes View Post
I'm happy to see that you have your BSJ tank up again. Love the vids! They have so much personality. It's amazing to me, as I watch them dart out and feed, how they can go in full speed reverse back into their hole, in strong current, and nearly every time, make the entry back in perfectly. Once in a while, if they get too far away, they miss, but not that often!
I have these two with much higher flow than the previous pair. I don't know if that is the reason or if these two are calmer in general, but so far they haven't swapped burrows once.


__________________
Pairs: 4 percula, 3 P. kauderni, 3 D. excisus, 1 ea of P. diacanthus, S. splendidus, C. altivelis O. rosenblatti, D. janssi, S. yasha & a Gramma loreto trio
3 P. diacanthus. 2 C. starcki

Current Tank Info: 200 gal 4 tank system (40x28x24 + 40B + 40B sump tank + 20g refugium) + 30x18x18 mixed reef + 20g East Pacific biotop + 20g FW +...
ThRoewer is offline   Reply With Quote
Unread 06/21/2019, 12:16 AM   #146
ThRoewer
Registered Member
 
ThRoewer's Avatar
 
Join Date: Jan 2015
Location: Fremont, CA
Posts: 9,555
Well, it seems they just needed some time to settle in before starting their silly games: when I came home this evening they had swapped burrows.
I definitely need to find a different pump for them. The current powerhead is way too strong.


__________________
Pairs: 4 percula, 3 P. kauderni, 3 D. excisus, 1 ea of P. diacanthus, S. splendidus, C. altivelis O. rosenblatti, D. janssi, S. yasha & a Gramma loreto trio
3 P. diacanthus. 2 C. starcki

Current Tank Info: 200 gal 4 tank system (40x28x24 + 40B + 40B sump tank + 20g refugium) + 30x18x18 mixed reef + 20g East Pacific biotop + 20g FW +...
ThRoewer is offline   Reply With Quote
Unread 07/15/2019, 03:44 AM   #147
ThRoewer
Registered Member
 
ThRoewer's Avatar
 
Join Date: Jan 2015
Location: Fremont, CA
Posts: 9,555
I think both are females. So I got the last one AC who I suspect to be a male. He is a bit smaller than my two suspected females but behaved like a male and right away kicked one of the females out of her burrow. Unfortunately, the second female wasn't giving up her burrow easily and he got a good beating from her.


__________________
Pairs: 4 percula, 3 P. kauderni, 3 D. excisus, 1 ea of P. diacanthus, S. splendidus, C. altivelis O. rosenblatti, D. janssi, S. yasha & a Gramma loreto trio
3 P. diacanthus. 2 C. starcki

Current Tank Info: 200 gal 4 tank system (40x28x24 + 40B + 40B sump tank + 20g refugium) + 30x18x18 mixed reef + 20g East Pacific biotop + 20g FW +...
ThRoewer is offline   Reply With Quote
Unread 07/15/2019, 05:00 AM   #148
alton
Registered Member
 
alton's Avatar
 
Join Date: Jan 2005
Location: Zuehl, Texas
Posts: 4,460
I never had any female fight with a male, typically the female started a burrow and the male would improve on it. KP Aquatic told me juveniles are normally not sexed so in time one will become a male. I wonder if one of your females has not started into a male change, and does not like your new male?


alton is offline   Reply With Quote
Unread 07/15/2019, 03:27 PM   #149
ThRoewer
Registered Member
 
ThRoewer's Avatar
 
Join Date: Jan 2015
Location: Fremont, CA
Posts: 9,555
Quote:
Originally Posted by alton View Post
I never had any female fight with a male, typically the female started a burrow and the male would improve on it. KP Aquatic told me juveniles are normally not sexed so in time one will become a male. I wonder if one of your females has not started into a male change, and does not like your new male?
This "female" is a good deal larger than the "male", so I don't see a contradiction in it fighting back.

Does KP Aquatics has any evidence or research papers to support that claim?
I somewhat doubt that they can change sex in the matter of gobies, hawkfish, and dottybacks (bidirectional at any point in their life) or like anthias, damsels & anemonefish (one way only). If there is the potential for change it may be very early in their development, but I think they are more like cardinals or blennies. I'm at this point even doubtful if marine bettas can change sex. Of the two female pairs I have for almost 4 years neither had the larger (dominant) female turn into a male.

I have 2 large female O. randalli (tiger jawfish) for almost 2 years and none of them changed sex. Right now I have a smaller male in QT I plan on putting with them when they move to their new tank. Let's see how that works out.

The BSJ will also get a new, larger tank so that they can spread out more.


__________________
Pairs: 4 percula, 3 P. kauderni, 3 D. excisus, 1 ea of P. diacanthus, S. splendidus, C. altivelis O. rosenblatti, D. janssi, S. yasha & a Gramma loreto trio
3 P. diacanthus. 2 C. starcki

Current Tank Info: 200 gal 4 tank system (40x28x24 + 40B + 40B sump tank + 20g refugium) + 30x18x18 mixed reef + 20g East Pacific biotop + 20g FW +...
ThRoewer is offline   Reply With Quote
Unread 07/16/2019, 05:29 AM   #150
alton
Registered Member
 
alton's Avatar
 
Join Date: Jan 2005
Location: Zuehl, Texas
Posts: 4,460
When KP started selling juveniles I asked what was the benefit and they told me that since they where not developed they still could change sexes. I watched a video once of someone that had hatched and then was able to raise them to maturity. Each one had their burrow about 6" from the other. It was neat to watch a bunch of them in a tank together. The big difference between yellow heads and BSJF is a friend had three pairs of YH in a 200 that coexisted. I had a 300DD with two females and a male and adding a second male seemed like the thing to do but it did not end so well for the second male. I ended up picking up the second male by my hand since he was near death and gave him to my nephew where he recovered. Sooner or later your male will flash which is awesome to watch.


alton is offline   Reply With Quote
Reply

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On



All times are GMT -6. The time now is 11:16 AM.


Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2024 Axivo Inc.
Use of this web site is subject to the terms and conditions described in the user agreement.
Reef CentralTM Reef Central, LLC. Copyright ©1999-2022
User Alert System provided by Advanced User Tagging v3.3.0 (Pro) - vBulletin Mods & Addons Copyright © 2024 DragonByte Technologies Ltd.