Can you come to a conclusion?

So my parents are divorced. I spend one week at my dads and the next at my moms. So i have two ten gallons at my dads and I am cycling a 55 gallon. So i left my dads last sunday all fish were fine. I stopped by at my dads after school on Monday and they were all fine. Yesterday my dad told me that the hatchet had died and he removed it(don't really understand how thats possible, but ok). Then today i stopped by to add more feeders to my feeder tank and boom. Nearly everything died except one 2" angel, paradise and a hatchet. The tank had a school of 4 cory cats(emerald, bandit, bronze and panda) a 4" peacock eel, red dwarf gourami, paradise fish, and a silver hatchet(i had ordered 2 marbled and 2 more silvers from my LFS last week and will be here soon, so that he can be in a school again). I walked into the room turn on the light and bam. The temp was 84 degrees, water had white clouds everywhere and all my plants were dead. I had left and the temp was 76 and everything had been feed. I have never seen anything with the white cloud like things like things floating all over(may be a aquirum fungus, but it was ALL over. Like every where I have no idea how those fish survived) My dad said that it must have happened "over night". it smelt like low tide and honestly i just threw everything out but the driftwood which is outside(to dry and soon will be bleached soon). My paradise, angel and hatchet are now in my 8 gallon feeder tank. The tank was cycled and had been fine a fish death here and there but nothing too major. Any ideas on what caused this "situation". I have the worst luck with fish.

bomber said:

Question, how did you come to the conclusion that your tank was "cycled"?

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one month with a goldfish until all levels were clear then slowly added 2 fish every other week until my tank was "full" and it had been going good for 4 months after.

rdKirby said:

That sucks man...do you have anything to regulate the temp on the tank? Also, for whenever you aren't there does your dad do water changes for you?

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it was a 50 dollar high end heater that is "self regulating" and normally once it get around the temp set it would stop. I normally do the weekly water changes on yesterday but had baseball so I was gonna do it today until..

The feeders had their own 8 gallon quarinte tank and I watch them for diease for the first two weeks b4 I feed them to my gar.. And I believe my tank was cycled but im only 90% sure but the tank had been fine for a couple month and last week I hadnt added any new fish for 2 weeks

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The 8 gallon feeders doesnt have a filter but has a heater and is only setup when needed. my gar is now in school(aquaculture school) so hes fine and 4 cory cats, paradise gouarmi, a silver hatchet fish, 4" peacock eel and a red dwarf gourami.

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