Hey my problem is I have a 15g tank with 1dwarf, 1 blue, and 1 gold gourami. They chase and push each other around alot, but it's been 2 months and none of them are hurt or beat up. I just feel like the 2 smaller ones are stressed. Im already in the process of getting a 30g tank. But is 30g going to be enough? Is there anything I can do to make them fight less? I bought a lot of plants and structures for them to hide in and that has helped a lot. Im just looking for some advice on what I should do, I feel bad for my fish