Hi I have a 30 gallon reef tank with some snails, hermit crabs, 1 redline cleaner shrimp and a pair of ocellaris clowns. Every since I arrived home from holidays I have noticed that my corals have started to die. My hammer and cataphyilla seem to remain closed and go a bit more into their skeleton everyday. My tree coral doesn't open fully and my leather coral stays drooped over all the time. I can't remember the parameters off by heart but I think they were:
: 9 dkh
Can't remember calcium
I will be retesting the water tomorrow and will post the results.