Discussion in 'Coral Health' started by Ryland, Dec 31, 2011.
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i dont think there are any deep water acros
Sorry I changed my response when I saw you mentioned 3x175s.... PAR measurements of 175s still don't get over 500 PAR, even with good reflectors, unless the coral is literally inches below the light. The VHOs will addd some, but I'm still skeptical that an acro is dying from too much light from such a setup, deepwater or not. My guess is it will recover and then brownout. If that happens, you can start slowly moving it up to more light. If it maintains color, it is probably in an okay spot.
Yes, there certainly are, but it's a relative term. We're not talking mushroom coral lighting They still like a lot of light by aquarium standards, but will do better under what many of us would call "moderate" lighting, rather than "high" lighting. Actually if you buy them on Divers Den or such, often they still recommend "high" light.
Some titled Deepwater Acropora are actually from Deepwaters
I think I have to agree with most of what you are saying here. I believe I may have gotten a wild animal that had not been acclimated to any home aquarium lighting
well deep water i believe is considered down lower where all the non photosynthetic gorgonians live.
there are no acros that require low light like everything has said.
Distichopora are ornate corals that branch in one plane. They have no cyclosystem; instead, gastropores are aligned along the edge of branches and these are flanked on each side by a row of dactylopores. Reproductive ampullae are clustered towards the ends of side branches.
Stylaster also branches in one plane but branches are fine, tapered and delicate. Gastropores are linked by individual cyclosystems and surrounded by dactylopores. These alternate on the sides of branches, giving the latter a zig-zag pattern. Wart-like reproductive ampullae occur on the sides of older branches. Almost all records are Cenozoic.
Each of these are found under shelfs and in caverns
"Deep water" for acros just means "not directly on the reef flat", but still less than 10M. The reef flat in the tropics would typically get well over 1500 PAR in nature, at high noon. Our tanks typical don't come close. After that red and yellow light gets filtered out, quickly, but the amount of blue light still remains high for many times deeper than that. So, within the first 10M, the light is still much higher than most tanks. They certainly may need to adjust to the "whiter" light of halides though.
Those aren't acros, they are non-photosynthetic corals... They need to be fed, as they do not harbor zooxanthellae and do not use or need ANY light.
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