first of all, sorri for ur loss. if it was an amonia spike, then the last thing u wanna do is a water change. the amonia spike is probably cuzed by the lack of bacteria in ur tank or a bacteria break down. da's y ur NO2- and NO3- levels are normal, because there aren't bacteria to convert ur NH3 to NO2-. therefore, u wanna increase ur bacteria level, and when u do a wc, u r takin away more bacteria from the tank.
o, and u have ur set up bare tank or u have gravels/substrate? and wut kinda of filtration do u have?
o, and u have ur set up bare tank or u have gravels/substrate? and wut kinda of filtration do u have?