Hey I was wondering if I could get some help. So a few days I noticed a hammer of mine is losing flesh after a few months of having it but noticed it a few weeks ago and don’t know why. Also noticed another is closed and not open/puffy like it usually is just for two days so far. And my one of my frogspawns tentacles have shrunken but I’ve read they do that when splitting and it’s actually in the process if splitting now into three heads. All my other corals are doing great growing new heads and everything just don’t know what’s going on. My parameters seems ok doing a water change tomorrow. Any help would be great. My tanks is the fluval evo 13.5. Also retesting my magnesium tomorrow to be safe
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