Hey, so just recently bought a tank, it’s a 37 gallon tall tank. I have heater, air pump, topfin 40 filter, two live lowlight plants, a fake decora rock, gravel substrate, two kissing gourami, 2 gold gourami, 3 Chinese algae eaters, and my other smaller tank is a 20 gallon, with 3 platys, 2 guppys, and 2 guppy fry. The 20 gallon been there over a month now so it’s doing well. In the early stages lost two molly, so was distressed about that, and got a bigger tank to do a better job. I have both tanks running now, the 20 gallon tank is doing fine, Fish are eating well, and pooping fine. The 37 gallon, my kissers are fine same with the AEs, but one of the golden gouramis is always on bottom of tank unless I come by than it swims normal, and had a clear long Pooh string that came off of it earlier today. Any suggestions for me and just caring for them, also what more to add would be great e.g shrimp etc. My water parameters are fine, I have a master test kit, and the 37 gallon was only not cycled enough. But ammonia and everything else was within parameters of being safe.