Hi.
I'm a newbie to aquariums. I've been lucky enough to have been donated a 30ltr biorb aquarium.

I have got X2 electric blue rams (very entertaining characters - one I can even finger feed!!), x6 neons and I've just taken in X2 bristlenose catfish. I am worried about the catfish being too big together in my size tank. So any advice would be great.
Thanks.
Maggie