Would it be okay with my tank parameters to add maybe two otos? As of right now I have tiger barbs, a dwarf gourami and yoyo loaches in a 20 gallon tank. Would they make a large biological impact? I'm not too worried about space because I will be upgrading to a larger tank eventually.
I agree, It wouldn't be a good idea to add anything until you get a larger tank.
Ottos are pretty sensitive to water parameters and do beter in a well established tank with some algae to munch on.
