1 DPs are messy and dont like each other. no matter how many hideing spaces there are they still have some requirements for territory. its jsut one in a 5 mabey 2 in a7 and 3 in a 10
Lots of people have had good luck keeping 2 dwarfs in a 5 gallon. Just make sure there are plenty of plants and caves and that there is good filtration.
A couple days ago I change my mind , I'm getting a ten The tanks should both be the same price anyway Don't worry about plants, I have too many in my other tanks, I might get a bunch of tiny flower pots for caves, they look nicer than PVC I'll have three in a ten, and if algae is Really bad, I'll get a couple otos