Question concerning my Zoo's that I have. I have had one colony of green Zoo's for approximately 3 months now. However, over the last month they have started turning brown. The brown coloring appears right inside the oral disk of each polyp. I know that Zoo's really can't have too much water flow, but how about light? All my research leads me to believe they love high light situations, but I wonder. Mine are about 10 inches directly under my 250W MH
bulb. I was thinking of moving them to the bottom of the tank perhaps a little directly out of the MH
light. Do you think this move could be worth the effort, or just wasting my time? The Zoo's have attached them selve to the rock, however. This is actually a problem as the rock is too large to move to the bottom of the tank. My only choice would be to remove the Zoo's from the rock. Not something I really want to do.
Water params are fine:
pH - ~8.4 during day, ~8.3 during night
Ammonia - 0
Nitrite - 0
Nitrate - < 5.0 (not detectable with kit)
- 330 (a little low but I have been having some problems raising this)
- 7DKH (Same as above. Tough sucker to get up to my usual 9DKH)
- 1250 - 1300
I have recently started feeding them more to see if I could elicit a change through this. Nothing has happened as of yet, however, I only started feeding them more sine Monday so I didn't except anything to happen this early.
, I have read the coral coloration FAQ
written by Eric Borneman:
The information is a little disheartening as he basically states that if a coral is changing colors, it is normally caused by the differences in lighting and nutrients from the habitat it was last located in. I hope this doesn't mean that I am doomed to brown Zoo's forever.
Good news is that my Ricordea should be in by 10:30 am. I can't wait!!