Frogspawn dying?

[Chaloupa]

HI! I don't have a whole lot of advice on the frogspawn as I have found them very very tolerant of "less that ideal" tank conditions (TRUST me, mine survived "complete Newbie me" a few years ago and has flourished).....BUT...I have 3 of the 14g biocubes...all run with heaters and all stay around 79. Our house is brutally warm right now and the tanks are still around 79-80 max with very little flux. That is something I would look into as that seems odd..... I also don't run the bioballs but use LR rubble, and a piece of floss ( the kind you get in a sheet and just cut to size ) over the drip tray in the second chamber. I have carbon in one tank but none of the others.... Good luck with your frog!