[fishyfinder]

stress maybe yes but that long after and the tank is a ten gallon tank with yes an air stone. the PMs are good no ammonia no nitrite no nitrate ph is 7.0 and the temp is 78 to 79. the water was changed three days ago because of the death of fish and there were six male guppies and now there is only three left o with an old neon because this tank was a little schooling tank with 12 neons and he is like almost 2 years old!!!