Hey guys and gals. So the last 2 days my 6week old guppy fry have started dying at an alarming rate. about 30 already in one baby tank and 5 so far in my other baby tank. All water parameters are good I do regular feeding (varied foods) and regular water changes. Ive know idea why this is all of a sudden happening. Now I have noticed that there stomachs have become smaller than what they used to be but ive treated for antI parasite and disease away in the other tank to stop an outbreak but I'm not sure its an internal parasite tho.. Could I be overstocked would it cause this problem now all of a sudden? I also had white spot (**** clown loach) and cotton mouth( beautiful betta but was in the same tank as the clowns) could the net I was using or sphion or bucket have passed it on? I'm baffled and can't find an answer anywhere. All help is appreciated as ever.