Those do look like regular old school flood lights. You would need the one that is labeled as CFL. Where your old bulbs CFL? If not that may have been the issue for only brown algae.
Those do look like regular old school flood lights. You would need the one that is labeled as CFL. Where your old bulbs CFL? If not that may have been the issue for only brown algae.
150G. Reef/Mix
125G. 3 Regular Oscars/1 Jack Dempsey
75G. 20+ Africans
40G. Fish/Reef. Algae Scrubbers on ALL my SW
10G. SW Fish/Reef.
10G. SW Hospital/new fish quarantine/pod breeder tank
6 stage RO/DI system 200 GPD.
No there is definitely a cfl spiral bulb in each of those. And previously I was using cfl as well, 100% sure of it. I still have the packaging and it's labeled cfl.
What about going to a 6 watt bulb if these don't work out? I get green growth on the screen in the slot, just not outside. Too much light perhaps?
Dark growth is lack of light. I would give these a couple cleanings and see how it goes. If it was to much light the algae would be yellow.
150G. Reef/Mix
125G. 3 Regular Oscars/1 Jack Dempsey
75G. 20+ Africans
40G. Fish/Reef. Algae Scrubbers on ALL my SW
10G. SW Fish/Reef.
10G. SW Hospital/new fish quarantine/pod breeder tank
6 stage RO/DI system 200 GPD.
Yes I will definitely give this a run for at least a month. Patience is the hardest part.
Just wanted to point out here that the OP is right, he was originally running 11W per side on a 12 sq in screen which is 2x the guideline wattage. So now he's 23W per side or 4x the guideline. Am I the only one that caught this? Also those lights are really close.
Should I back them up a little bit? The actual bulb is about 2.5 inches away from the screen.
I noticed that to Floyd. For 7 months he has had only brown algae. If its brown more light could not hurt.
I though the lights were close as well. I kept mine at about 3-4 inches so you might have to back them off. You will see the algae burning.
150G. Reef/Mix
125G. 3 Regular Oscars/1 Jack Dempsey
75G. 20+ Africans
40G. Fish/Reef. Algae Scrubbers on ALL my SW
10G. SW Fish/Reef.
10G. SW Hospital/new fish quarantine/pod breeder tank
6 stage RO/DI system 200 GPD.
Seems like the dark growth is beginning again..
Forgive me if you already posted this but...
How much are you feeding?
Do you have any nuisance algae in the tank?
Tank shot?
I am feeding one cube mysis per day along with a 2x2 piece of nori. I only have a few spots of green hair on the back wall and overflow. But I do have a problem with cyano all over the sand. Although this is masked by my diamond goby who does a good job of keeping the sand turned over.
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