Sorry, I just can't stop talking about them

60 gallons tank. Temp 86F.
I tried to go a little bit higher, but they got dizzy...??
Once I have temp dropped back to 86F, they became happier and more active.
Filter: just an old aqua500 with one large sponge filter and a full bag of nano bioballs. Set water flow to maximum.
2 air stones.
Strong water flow keeps them active and swim all time time, so they get hungry and eat more. Look at the picture of their first feeding on day #1 and now exactly a week later. OMG, they were so skinny and eyes were popping out.
Since my last post, they ate 2 more times.
Food: blackworm only for now.