do i have a murderer or a disease in my tank !!!!!!!!!!!

[Vince272992]

hi last night was i fed very hevaliy in my 65gal tank cause it was the day i feed most my corals. so any way i woke up this moring to see that my emerald crab was eating one of my two firefish, and the other one is no where to be found... i immedietly think my ammonias went way up after the large feeding so i tested it and everything is at 0???? so then i suspect the emerald crab killed him becasue he killed my shrimp and is pretty aggresive, but im just not sure. none of my current fish (clown, mckoskeres and YWG) have any ich or external parasites that i can see but my clown is acting strange now as he is not swimming like he useually does. The only thing i see wrong with any of my fish is that my YWG has small white dots inside his mouth and he is breathing very heavily, but hes had that for a while and i think its just sand cause he likes to sift sand a lot, i could be wrong.

all my fish are eating and swimming (some more then others) so my question is... wht the heck is going on!!!!!

 

[Vince272992]

i also just atarted to dose seachem aqua vitro calcium that i got at my LFS... do u think this could be a problem?? there was no selent on the bottom of the cap.


do u think somebody used it and put something harfmul in the bottle i know its not water cause it has a weird smell to it