So you can free up space to buy a fish you've wanted for ages
What if the store doesn't accept
. Also they have 20 cories in a 10 gallon tank and I have 6 in a 40 gallon tank...Your tank will still contain different pathogens to what the store has. Reasonable IMOMy pet store is worried that it will make their tank sick, even though they keep theirs on gravel and I keep mine on sand. Also they have 20 cories in a 10 gallon tank and I have 6 in a 40 gallon tank...