Ok, some assistance would be welcomed. I am having trouble with a lot of my corals, mainly SPS
of course. The main problem is bleaching, usually within 24 hours of adding to the tank. At this point I am assuming it to be my lighting, but not completely sure. Here is my setup:
500 gallon reef : 9
5 X 250W MH
4 X 6' VH0 (2Xfull 2X 50/50)
one set of VHO
and 2 of the MH
I run from 12 noon until 10 pm (one circuit)
The other three VHO
I have come on from 2-7pm
Nitrates : 0
Nitritres : 0
Calcium : 360-370
Temp : 78-80
sp grav 1.024
I have a 150 gallon sump with in-sump euro reef skimmer (CS-8? the things huge ), above the sump I ahve a 55 gallon refugium. Also running a calcium reactor and 2X 40watt UV
The tank is not very old yet, which may be an issue although not sure why. It was started up in Mid December 04. I have about 35 fish in the tank which are all doing great. The include firefish, purple tang, chevron tang, crosshatch trigger, royal gramas, blue stripe jawfish, a few damsels, pair of ocellaris clowns, 6-stripe rass, etc.
I have a green tip anemone and a rose bulb which are also doing great.
Not sure the name of all of these, but I have several corals that are doing excellent : open brain, flower pot, Xenia (up top in the light has more than increased 5X it's size in three months). I also have some button polyps and Blastomussa coral, along with 4 tridacna clams that are thriving.
lastly I have 2 small colonied of SPS
that are growing and seem to be doing well : Montipora Branched and a green cap.
Seems everything else I have tried adding to the tank, aka acropora, Stylophora, etc never survive long at all.
The only ones that seem to survive, or at least last longer than the rest, are ones I put at t he bottom of the tank, 3' deep. Everything else seems to bleach out.
I also seemed to ahve trouble with my frogspawn and hammer corals. They usually do not extend much and keep closed up, although they have been in the tank for about three months now. Not dead, but not thriving either.
Any ideas what I should be trying or looking for? Does the tank need to age for some reason? It's already cycled through the algae stages and looks good. I have quit a bit of coraline algae growth, but not a ton. Is the lighting too much, or intense? Help!