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Old 11/14/2017, 02:10 PM   #9776
hkgar
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Originally Posted by iced98lx View Post
I'll cut LED by an hour and see if that helps. To be honest I was strongly contemplating going the other way and extending LED to 7 hours but I can always experiment with that once the algae in the DT is under control. I'll make that change this week.
Iread somewhere that SPS corals get little additional benefit from more than 6-8 hours of lighting. Do some checking in the SPS corals forum. You might try reducing lighting gradually and see how the corals react. My judgement of coral's growth is the uptake of Alk. I use a little over 2 dKH /day.

I feed quite heavy - my tangs eat at least a 4x8 sheet of Nori daily.

I have a ATS and also dose carbon to keep NO3 and PO4 under control.
Last reading were 5 and .07

My last harvest after 6 days was 400 grams of algae. See pictures. My screen is 9x10


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180 gallon, 30 gallon sump, 3 250W Radiums,4 ATI T5's, MTC MVX 36 Skimmer, Apex controller Reef Octopus CaRx

Current Tank Info: Midas Blenny, Yellow/Purple, Red Head, Hoevans, Possum Wrasses, 2 Barred Rabbit, Cherub & Spotbreast Angle, Kole, Purple & Caribbean Tangs, Matted Filefish, 2 Percula Clown, 4 PJ Cardinals

Last edited by hkgar; 11/14/2017 at 02:28 PM.
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Old 11/14/2017, 02:14 PM   #9777
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Originally Posted by anothermineral View Post
Thoughts on using a 20W LED flood light that uses multiple lights vs. just one to make the total wattage.

For example, between the following:

https://www.lightingever.com/20w-sup...lights-ww.html

and

https://www.lightingever.com/1600lm-...049-ww-us.html
The first one is part of the product line that 302 Aquatics uses. For that form factor of fixture, it's one of the better quality fixtures. Also it's IP66 so it's a bit better for water intrusion. 120 beam angle, wider is good

The second one looks like it has a diffuser lens. Not sure if that would be good or bad, I'm guessing that's done that way to reduce glare or for a wider dispersion. That one is IP65, 100 beam angle, not sure what the PE wire is. Between these two, I'd use the other one


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Algae Scrubber Basics!!! GOOGLE "algaescrubber zoho"
General Interest Forums --> Advanced Topics --> Algae Scrubber Basics (sticky)
--> POSTS #3251-64 (Basics), #5206 (Cleaning), #6884 (LEDs), #729
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Old 11/14/2017, 02:16 PM   #9778
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Originally Posted by hkgar View Post
Iread somewhere that SPS corals get little additional benefit from more than 6-8 hours of lighting. Do some checking in the SPS corals forum. You might try reducing lighting gradually and see hoe the corals react. My judgement of coral's growth is the uptake of Alk. I use a little over 2 dKH /day.
I recall something about this as well, but I had no reference so I didn't bring it up....


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Algae Scrubber Basics!!! GOOGLE "algaescrubber zoho"
General Interest Forums --> Advanced Topics --> Algae Scrubber Basics (sticky)
--> POSTS #3251-64 (Basics), #5206 (Cleaning), #6884 (LEDs), #729
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Old 11/14/2017, 02:22 PM   #9779
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Quote:
Originally Posted by Floyd R Turbo View Post
The first one is part of the product line that 302 Aquatics uses. For that form factor of fixture, it's one of the better quality fixtures. Also it's IP66 so it's a bit better for water intrusion. 120 beam angle, wider is good

The second one looks like it has a diffuser lens. Not sure if that would be good or bad, I'm guessing that's done that way to reduce glare or for a wider dispersion. That one is IP65, 100 beam angle, not sure what the PE wire is. Between these two, I'd use the other one
Thanks for the quick reply. Appreciate it!


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Old 11/14/2017, 02:30 PM   #9780
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Originally Posted by Floyd R Turbo View Post
I recall something about this as well, but I had no reference so I didn't bring it up....
I agree, that's why I suggested doing some individual research in the SPS forum.

If you think about the sun in the sky for an average of 12 hours a day, 2-3 hours in the morning and evening are at a small angle to the surface of the ocean with little penetrating light, but I am not a scientist and just thinking at a small angle much of the light bounces off and does not penetrate.


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180 gallon, 30 gallon sump, 3 250W Radiums,4 ATI T5's, MTC MVX 36 Skimmer, Apex controller Reef Octopus CaRx

Current Tank Info: Midas Blenny, Yellow/Purple, Red Head, Hoevans, Possum Wrasses, 2 Barred Rabbit, Cherub & Spotbreast Angle, Kole, Purple & Caribbean Tangs, Matted Filefish, 2 Percula Clown, 4 PJ Cardinals
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Old 11/14/2017, 04:45 PM   #9781
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Quote:
Originally Posted by hkgar View Post
Iread somewhere that SPS corals get little additional benefit from more than 6-8 hours of lighting. Do some checking in the SPS corals forum. You might try reducing lighting gradually and see how the corals react. My judgement of coral's growth is the uptake of Alk. I use a little over 2 dKH /day.
My LED's are on 6 hours a day, so I'm right at the bottom. The T5's which are on quite a bit longer are just two 5 foot bulbs over a 180 gallon tank so I can see things in the morning, hardly providing sufficient growing PAR for the over 1/2 way down. I too measure my growth in ALK usage and recently went from relying on an AWC system to dosing to keep up, thus my comment that my current setup is working and using general caution on changing it, no matter what "they" say. I'm only a few years into this hobby and I've lived out the mantra that nothing good happens fast, but I can also personally attest that the wrong "slight tweak" can prove that bad things can happen much faster.


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Old 11/14/2017, 05:29 PM   #9782
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Thanks for the clarification on the lights - that makes sense now


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Algae Scrubber Basics!!! GOOGLE "algaescrubber zoho"
General Interest Forums --> Advanced Topics --> Algae Scrubber Basics (sticky)
--> POSTS #3251-64 (Basics), #5206 (Cleaning), #6884 (LEDs), #729
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Old 11/15/2017, 01:48 PM   #9783
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Back to the subject of the thread and the light discussion and some new reader doesn't get confused - I keep my ATS lights on 12 hours.


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180 gallon, 30 gallon sump, 3 250W Radiums,4 ATI T5's, MTC MVX 36 Skimmer, Apex controller Reef Octopus CaRx

Current Tank Info: Midas Blenny, Yellow/Purple, Red Head, Hoevans, Possum Wrasses, 2 Barred Rabbit, Cherub & Spotbreast Angle, Kole, Purple & Caribbean Tangs, Matted Filefish, 2 Percula Clown, 4 PJ Cardinals
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Old 11/15/2017, 05:12 PM   #9784
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Decided to let my screen go 14 days instead of the usual 7 day scrape.
Pretty happy; got more growth & stayed nice & green with almost no yellow die back.

Interesting growth in that despite the thickness & lushness there's no long strands hanging from the bottom of the screen.


Attached Images
File Type: jpg 14 day growth.jpg (105.0 KB, 15 views)

Last edited by Twinfallz; Yesterday at 01:03 AM.
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Old Yesterday, 07:49 AM   #9785
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Ok guys, Help me out there. I have to find a RELIABLE replacement option for my LEDs. I have approx a 7x7 hole cut in either side of my ATS enclosure, and now BOTH of my fixtures are dead. I dont mind building the LEDs if necessary, but I need it to be relieable and reasonable cost. I was considering building something using the Plant growth LED clusters from Led-group-buy (I used the reef version for my tank), but those are NOT cheap. They are about $60/ea just for the LED cluster, then I need to buy drivers etc. That will likely end up costing me $250 easily for two of those. So I am asking what are you guys using??!! I need something low profile.....

These are what I was using (50w grow lamps)



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Old Yesterday, 10:27 AM   #9786
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Well i got impatient and bought 2 of these. They are not red, but they look to be a decent option. I chose the Warm White version




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Old Yesterday, 12:40 PM   #9787
hkgar
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Quote:
Originally Posted by Horace View Post
Ok guys, Help me out there. I have to find a RELIABLE replacement option for my LEDs. I have approx a 7x7 hole cut in either side of my ATS enclosure, and now BOTH of my fixtures are dead. I dont mind building the LEDs if necessary, but I need it to be relieable and reasonable cost. I was considering building something using the Plant growth LED clusters from Led-group-buy (I used the reef version for my tank), but those are NOT cheap. They are about $60/ea just for the LED cluster, then I need to buy drivers etc. That will likely end up costing me $250 easily for two of those. So I am asking what are you guys using??!! I need something low profile.....

These are what I was using (50w grow lamps)
http://www.stevesleds.com/Refugium-S...ems_c_108.html


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180 gallon, 30 gallon sump, 3 250W Radiums,4 ATI T5's, MTC MVX 36 Skimmer, Apex controller Reef Octopus CaRx

Current Tank Info: Midas Blenny, Yellow/Purple, Red Head, Hoevans, Possum Wrasses, 2 Barred Rabbit, Cherub & Spotbreast Angle, Kole, Purple & Caribbean Tangs, Matted Filefish, 2 Percula Clown, 4 PJ Cardinals
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Old Yesterday, 11:41 PM   #9788
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Decided to let my screen go 14 days instead of the usual 7 day scrape
That's about as long as a waterfall screen can go, before root die-off. And even then, the growth needs to be light green.


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Old Today, 12:34 AM   #9789
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That's about as long as a waterfall screen can go, before root die-off. And even then, the growth needs to be light green.
Yes, wouldn't go longer than 14 days.

How was the color of the growth from my photo IYO?


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