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Old 03/15/2017, 05:45 PM   #9376
crabbydan
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Ok built a prototype to try out this weekend after doing my crazy calculations



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Old 03/15/2017, 07:38 PM   #9377
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Mind of goofy question as I've never had this kind of growth on a scrubber before.. I actually have thick turf algea on my scrubber.. It's about 1/2" thick on each side.. It's actually growing into the water below the scrubber (it's in my sump). I am just wondering, because I kind of let it go to do is own thing, and it's been about a good month or two since I've scraped it.. Should I remove all of the algea like normal, or should I only remove say half(maybe half off, from the spray bar down?)

This is the weirdest thing I've ever experienced with scrubbers, and I just happened to notice it.. I enlarged my spray slot to accommodate the much larger pump (1000gph for those that don't remember my previous posts), and it has been doing this ever since..

Just wondering advice if anyone else has had this.. Lol, as this stuff is thick, short, and kinda more spongy..

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Old 03/16/2017, 09:45 AM   #9378
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how effective can ATS be for cyano problems??
in my 600g system I have been having cyano problems.
I have 2 ATS installed in that system a 2 cube and a 4 cube.
I am feeding arround 4.5 cubes.

I was running both ATS at 100% intensity and for leds on for 21 hours per day.
I am planning to increase the leds leds are on to 23 hours. any thoughts??

Thanks a lot


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Old 03/16/2017, 12:32 PM   #9379
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How is your ATS growth?

I find that cyano is a local issue due to flow and light, not a total system issue. But your system may be different.


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Old 03/16/2017, 01:03 PM   #9380
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Quote:
Should I remove all of the algea like normal
Hard to say without seeing it. Probably should, because after one month you will have dead roots that need cleaning off.

Quote:
how effective can ATS be for cyano
Helps a lot. Low nutrients make it harder for cyano to grow. With some decent flow across the sand, and some sand sifters to stir the sand up, you won't have any cyano.


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Old 03/16/2017, 03:55 PM   #9381
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Quote:
Originally Posted by karimwassef View Post
How is your ATS growth?

I find that cyano is a local issue due to flow and light, not a total system issue. But your system may be different.
ATS is growing well, algae is green but detaches easilly from screen when I clean it.

I increased the flow in the system around 1 month ago, I now have 6 mp60s and 3 gyres 250, but cyano does not go.

NO3 is around 8 and PO4 : 0.05

I am thinking of increasing light in ATS 2 more hours to a total of 23 hours a day. any ideas?


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Old 03/16/2017, 04:02 PM   #9382
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Originally Posted by SantaMonica View Post
Helps a lot. Low nutrients make it harder for cyano to grow. With some decent flow across the sand, and some sand sifters to stir the sand up, you won't have any cyano.
Thanks for your answer Santa Monica

tank is 11 months old and is bare bottom
I have a lot of flow to try to keep detrietus suspended
I have blowed rocks a couple of times and everytime I do it , a lot of detrietus comes out from rocks

I do not have an idea of how to combat cyano in this tank

thanks


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Old 03/16/2017, 04:21 PM   #9383
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what's your light spectrum?


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Old 03/16/2017, 05:21 PM   #9384
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Quote:
Originally Posted by karimwassef View Post
what's your light spectrum?
I have four metal halides 400W lamps with 20k radium bulbs


Thanks


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Old 03/16/2017, 09:38 PM   #9385
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this is an oldie but goodie

http://www.reefcentral.com/forums/sh....php?t=1831125

You may want to run your scrubber with more lights but also simultaneously go lights out on the DT for a few days


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Old 03/17/2017, 06:52 AM   #9386
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Quote:
Originally Posted by karimwassef View Post
this is an oldie but goodie

http://www.reefcentral.com/forums/sh....php?t=1831125

You may want to run your scrubber with more lights but also simultaneously go lights out on the DT for a few days
Thanks a lot Karim


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Old 03/17/2017, 08:07 AM   #9387
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Quote:
Originally Posted by SantaMonica View Post
Hard to say without seeing it. Probably should, because after one month you will have dead roots that need cleaning off.



Helps a lot. Low nutrients make it harder for cyano to grow. With some decent flow across the sand, and some sand sifters to stir the sand up, you won't have any cyano.
Thanks.. Lol.. I ended up removing the vast majority of it.. I measured, and it was 2" thick across.. And the funny thing as you mention roots, it's that it was been all the way through.. And very tough to get off.. I literally had to like comb it with my fingernails to get it off.. Once it grows back, I'll take a picture, because it's very different from what I've had before..

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Old 03/17/2017, 01:49 PM   #9388
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OK lets see if I got this right, for a water fall a=scrubber:
2 cube a day = 24 square inch screen lite on both sides. so if I make my screen 6"x4"
and flow rate of min. 35 GPH per inch. would mean my min. flow rate . would be 210 GPH.
correct?

and as it not advisable to T off the overflow. even tho I have an emergency drain. I would be looking for a lil pump in the 300GPH range. yeah?


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Old 03/18/2017, 12:45 PM   #9389
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from the very first post in this thread
wished to ask if this is still the recommended lighting spectrum 27ooK??
LIGHTING
"-23w Spiral CFL bulbs- (2,700 kelvin is suggested)"
this is optimal range still??
or others have found different results with higher or lower
wattage outputs and higher spectrum and achieved better or worse results

thanks for all the help great thread


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Old 03/18/2017, 10:32 PM   #9390
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Quote:
2 cube a day = 24 square inch screen lite on both sides. so if I make my screen 6"x4" and flow rate of min. 35 GPH per inch. would mean my min. flow rate . would be 210 GPH. correct?
Yes

Quote:
and as it not advisable to T off the overflow. even tho I have an emergency drain. I would be looking for a lil pump in the 300GPH range. yeah?
Yes you can T off the overflow, no problem. No need for a small return pump however, just use what you need. The T (with a valve) will supply what you need to the scrubber.

Quote:
is still the recommended lighting spectrum 27ooK?
Yes, if using CFL bulbs. But if you can, use grow-light LEDs, or all-red LEDs. Same results with half the watts.


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Old 03/19/2017, 11:58 AM   #9391
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thanks for the intel


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Old 03/19/2017, 08:29 PM   #9392
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thanks SM, just wanted to be sure my math was correct.
as much as i enjoyed my upflow Its time to move back to a water flall scrubber.
I went ahead a bought a little Ehiem pump for $30 should last years. has adjustable flow rates and I might add a gate valve to dial it in more if need be.


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Old 03/20/2017, 01:05 PM   #9393
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Quote:
Originally Posted by Devaji108 View Post
thanks SM, just wanted to be sure my math was correct.
as much as i enjoyed my upflow Its time to move back to a water flall scrubber.
I went ahead a bought a little Ehiem pump for $30 should last years. has adjustable flow rates and I might add a gate valve to dial it in more if need be.
Remember, that flow rate is after head loss. So if you bought the Eheim Compact+ 1000, that's not going to cut it as the head loss curve on that pump is pretty steep. At a 12" vertical rise plus other plumbing losses, you will start out at <200 GPH and that will drop fast once you get an resistance. I ran one on an L2 for about 3 months and the flow dropped to below 100 GPH.


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Old 03/20/2017, 02:17 PM   #9394
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Originally Posted by Floyd R Turbo View Post
Remember, that flow rate is after head loss. So if you bought the Eheim Compact+ 1000, that's not going to cut it as the head loss curve on that pump is pretty steep. At a 12" vertical rise plus other plumbing losses, you will start out at <200 GPH and that will drop fast once you get an resistance. I ran one on an L2 for about 3 months and the flow dropped to below 100 GPH.
well ****, that is the pump I got was thinking it would be perfect and being a Ehiem good quality. cant belive the head loss is so much on that pump.


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Old 03/20/2017, 03:10 PM   #9395
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how did we come up with the flow rate of 35GPH per inch anyway?


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Old 03/20/2017, 07:41 PM   #9396
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In my 600g system I am having cyano problems right now.
P=0.09, N= 8.0
I have 2 ATS installed for a total of 6 cubes.
GHA has been growing well in ATS but the cyano does not seem to mind having the ATS so I placed a GFO reactor with small amount (200g).

any predictions if the GFO will affect the ATS?
I ask because if it affects the health of the algae in teh ATS my N could increase due to lower consumtion of nutrients via the ATS

thanks for your answers


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Old 03/21/2017, 12:43 PM   #9397
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35 was just found after building many of them using a single sheet of plastic canvas.

GFO can slow down a scrubber. Better is to just reduce nutrients slowly, and get a sand sifter of some sort. cyano will go away eventually.


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Current Tank Info: 70g test reef pond, 2X 10g test SW, 2X 10g FW; 2g test guppy
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Old 03/22/2017, 11:24 AM   #9398
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thanks SM I will test it out and see if it work out I can make it were it only around 6" of head if it cant perform with that lil head back it goes to BRS...
also I might just T off the over flow...


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