ok my bf had a 5 foot tank and we managed to sell it and its contents five years ago, he kept his CAE in a 15 gall tank with a group on tetra and a few guppies, never had any problem but im moving the guppies into a 25L tank.. Q is do i keep the CAE in the 15 gall that im adding my bollivian rams too or do i keep him in there with them?