Hi...3 tank family. I had a 12 gal
nano...everything was wonderful, beautiful corals, no issues. My son has a 55 gallon, just starting out with corals..was to be just a fish tank.
Now I've upgraded to a 30 gallon tank with metal halides.
Found an incredible source for coral polyps (zoos) with colors that are amazing! Brought them home after checking my water (in the 30 gallon) multiple times, everything is perfect alk
/mag/nitrites/nitrates/amm/cal BUT the polyps won't open up and some of the corals that were moved from the 12 gallon tank like frogspawn and even the xenia look like they are shriveling.
The metal halide light on there is 14K. I have a 10K bulb but it won't be as blue I know.
Please tell me what we are doing wrong. I wonder if it is too much light for the zoos/frogspawn/etc.? I've only got one small brain and all the rest are soft corals/polyps/mushrooms/etc.
Advice welcome & wanted badly please!!!! Thanks everyone.