My cup coral seems to be coloring up as my acro have died out and continue to suffer rtn. I have good continued growth with all other corals. I have noticed this cup coral to be coloring up a bit more. I did neglect my carbon, purigen and gfo
for about a month cause my pump impeller went bad but after replacing and recharging my media all I have noticed is a small difference in water clarity and color of coral.
My question is based off of my cup coral? If a cup coral is healthy but seems to be a bit brown what is the cause. Also acro have pretty much just died although, I did cut all the dead one off the frag and re glue the healthy peace back it has now suffered rtn. I feel I may be underestimating how carfull I need to handle acro as to not cause them to slime. My parameters seem to be in point as far as alk
and cal are concerned. Is it a possible phosphate issue and if so what let is recomended?
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