Hi all i just got back from petsmart and they were having this awesome memorial day sale and i couldnt pass it up they were selling alot of there fish for 1 dollar i mostly just got some tropical community fish i already have my monsters but my question is my tanks were going to get vaccuumed today should i put the fish in there now and vaccum do a water change or should i do the water change now and wait to put the new fish in after a couple hours pass by any info would be greeat