Our house is kept around 78 deg in the summer, so I would guess the tank is around 78 as well.
These fish came from a new fish store that opened up about 30 min away. When I saw the rainbow darters, I did not know what they where, no sign, so I asked.
The guy told me that the fish sold for $40 a piece online, that he would make me a deal and sell them to me for $8 a piece. Told me the rainbows where brought in buy a customer and at $40 a piece, he would not be ordering any more in.
I usually do not make impulse buys, but I was afraid of missing out.
When I got home, that is when I found out they where Native American fish. I have not seen any in my area, but they do sell them online for $7 a piece.
Not sure where the guy came up with $40, but it did make him a sell.