How important is the water prep for a change. I hear about people heating and airating or whatever before hand. I only have a 10 gallon tank but all i do is mix a gallon of spring water to the right salinity in a 5 gallon bucket and slowly dump it in. Water is prob 73-75 degrees when it goes into my 77 degree tank. LFS never said anything about the prep that I see people talk about on here. I have a FOWLR with 1 damsel and 1 baby snowflake and janitors . I am in the process of moving to a 75 gallon.