bleaching corals

I accidentally dropped this guy behind a rock about two months ago. Finally found him, and he’s just slightly purple at the tips now— is he going to make it? Also, what the heck is this guy? I forgot what they called it at my LFS. I think they said galaxia but idk. Thanks!

Hello Everybody, My tank is 2 and half year old and is a 32g biocube. I have a kessil 160WE, ATO, heater, circulation pump and hammers, Lepto, FrogSpwan, Acans, Toadstool. Some scarlet hermit crabs and some snails. The tank is clean minimal algae growth, I do water change every two weeks with...

I just bought some great corals from @acro-ed , but as soon as I started acclimating them to the tank, it appeared my blenny was nipping at them. I figured he was just going after algae, but could not see any algae on the acropora at all. Fast forward to today, several of the acros are...

Hi all, I have a mixed reef with only a few SPS, LPS, and a few softies. All have been progressing reasonably well until 2 days ago when my acropora started to rapidly deteriorate. It's prob a goner (though I need help here too determining when it's time to call time of death), but I'd really...

Hello fellow reefers. Need help in determining why all of my encrusting corals have perished. This pic is from July 9th. Now all of the corals in the circles have bleached. Could chemical warfare be the culprit? Specs, 57g 36x18 with 30g sump and 60g fuge 2 kessil a360's Apex controller...