Firstly not sure where this would be best suited but i thought it would be best here. I have a 330l tank i recently upgraded about 8 weeks ago. I have not added any more fish yet. My parments as of today stand at: Ph: 7.0 Ammonia:0 Nitrite:0 Nitrate:5 The current tank members are. 6 White clouds, 4 Silver tips, 4 Cherry barbs, 4 Black phamtom tetra, 3 Ember tetra, 8 Guppys, 1 X-ray tetra, 1 Bristle nose plec, 3 Zebra danios, 1 Norman lamp eye, 2 Angel fish, 2 Albino Buenos Aires tetra, 1 Female dwarf gourami, 1 Male salfin molly, 1 South American bumble-bee catfish, 3 Albino corys, 2 Female platys, 1 Marble hatch fish, 1 Female balloon molly. I have worked out that i have 266 cm of fish so have 64 cm of fish left. I keep looking at getting some tiger barbs but i have read different things about them. So i wasn't sure what different peoples experiences people have had with them. Any ideas thanks.