Hey all, I'd like to add a few more kuhli's to my tank so I will actually see them more often. I made them a slate cave - which they love - but I'd like to see them venturing out more and hanging out in my plants. I planted a forest of rotala just for them! However, I'm wondering if my ever increasing guppy family has caused me to hit my fish keeping limit? I have about 20 guppies (most of them fry), and 4 kuhli's. My 20G tall is exploding with plants and has been very stable so far (8 months, except for one blip caused by very high temps) - NO2 and NH3 are not detectable, even with extra food added. What do you think?