Originally Posted by Nylith
What do you think about adding 3 pearl gouramies in this 30 gallon fish tank?
I already have: 4 swordstails and 8 neon tetras.
Filtration: aquael turbo 1000, 1000l/h
I think you'd be risking problems, but they're not guaranteed. Pearls can be aggressive toward each other (especially a male ready to breed), but timid toward other fish. They'd need hiding spots, and I doubt a 30 is big enough to provide them for a group of three. Also, swordtails (which I love) are active and can be aggressive. They might stress the pearls and out-compete them for food. Plus, some swordtails get quite large, so three pearls might be overloading the tank.
If it were me, I would just add one, at most.