My friends mother has a tank and 3 fish she's been trying to rehome, so we're taking them for ds2 birthday.
We're going over tonight to pick them up- she's drained the tank and has the fish in a container for transport.
Can I put them straight in the tank when they get home? Or does the water in the tank need to sit for a while? I put water in tubs last night as she said I'd need to let it get to room temp but I'm not sure if I need to let the filter in the tank run in the new water for a while before putting them in.
Also (and this may sound daft) will they be ok if I cover the tank with a sheet tomorrow evening or will this distress them? His birthday is on sat, so I planned to cover it when he's home until then so he can 'unwrap' it on Sat, but I don't want his whipping of the sheet to a tank of fish that have died of shock or distress!
I've looked up online how to care for them, but can't find the best way to rehome them.