So I've posted here before & my first issue is that I've had many people tell me to re-home 3 of my 4 Gourami. But mine all seem pretty chill, they even school together! The big ones, with little ones and all of them together I've seen no aggression whatsoever! And I'd hate to part with any one of them. So, anyone out there have a successful gourami tank? ***It's a 36 gallon bowfront, FYI Here's my fish currently: 4- Dwarf Gourami (2 I've had since February start up & the other 2 I've had 6 weeks or so) 7- danios zebra & longfin 2- black skirt tetras 3- platy, 2 orange & 1 red #2 is my water, after 3 x 20% water changes and my tank is still a mess. It's cloudy & white & and I cannot get the water levels where I want them, the ammonia is high, pH is too low, the nitrites are zero, the the nitrates are high. I've added the appropriate API fixes but it doesn't seem to be getting better. I'm thinking of doing a 50% water change, I know it's drastic, but I want my guys swimming in good clean water... # Is this a good idea or not? # 2 if I can replace with well water, should I use it? I'm just concerned it'll come with it's own list of hassles. Really, I just want clean clear water & happy fish before I go replacing my Chinese algae eater or rainbow shark. Or someone said cory cats are good for bottom clean up, but I don't know. I'd really appreciate any and all advice! Thanks, y'all have been great! P.S. on chemicals, do y'all like seachem? I was thinking I'd get a seachem Purigen for the filters? How about NLS food? I've tropical fish so figured NLS Flake as opposed to their sinking pellets... I'd love some input there too!