My frogspawn and hammer coral for some reason arent doing very well my nitrites and ammonia are zero nitrates below 5 ppm the only problem with my water chemistry is my alkalinty is a little high i got my frogspawn as a single head and now it has three its just been the past couple days that its been declining but my torch coral is doing amazing. would alkalinity affect them if so is there anyway to lower it i know its supposed to lower on its own. Is there anything else that could affect them all my other corals are flourishing its just my hammer and frogspawn.