I originally had 8 neons, but they fought like crazy so I added two more to make 10 and now they're calm and showing even brighter colors than before. My main concern is I have a 10 gallon with a filter rated for a 20 gallon. I have a jungle of live plants to help absorb fish waste and excess nitrates and I am militant about a 25% water change every 7 days on the dot. How badly am I overstocked with my current setup in the 10 gallon? 10 Neon Tetras 1 Betta 3 Otocinclus I don't think any of them are huge on the bioload, as long as they aren't overfed.. Thanks!