thats actually really interesting.
im only setting up a 10gal that my african clawed frog lived in before he got bumped up to the 20gal. so i already got the hood and everything, really if i just keep some LR
and some snails and inverts, (i know this sounds really unanimal rights of me) but nothing to loose.
eventually if this works out, maybe a brown clown goby. hope yours works out for you charlie, keep me posted if anything happens, and you think its because of non-RO