They can live in warmer water BUT it reduces their life span, it's not very comfortable for them.. like a thick coated dog (husky) stuck in 80F+ temps. The warmer the water the shorter they live. Can turn a several year life span into only months with you.Are they really that sensitive to warmer temps though? I have wanted some since I was a kid, found a source recently, but I believe they might have trouble at the 30C average temp my tanks run dec to march..
Today is literally the first time I have seen my heaters on in 2 months.