i wanted to ask more questions but my my pregnant wife was siting in the car in the middle of the ghetto. I was going to use what was supposed to be a 55 gallon to pre condition my water for water changes but with it being ony 26 gallon i might have to use it for my convict breeding tank.
unless you are needing to do some kind of pH buffering, just add the prime (or whatever conditioner you use) and then add the water from the sink at same temp as your tank water (your hands can be surprisingly accurate with this lol)