How to determine the fish stock capacity for your tank?
Hi guys, I had a 20G planted tank set up for couple months now and been slowly adding fishes, and I would like to know how to determin e the right capacity for fish stocking for my tank.
I have the top fin slientstream 40 hob filter (120-200 GPH flow, but right now set in the lower end of flow), I added filter pad for the intake, and rigged the inside to fill it with additional filer sponge and 500 ml of seachem matrix, so there are plenty of biological filter and I never see any ammonia/nitrite post cycle and nitrate is usually around 5-10 PPM with 20% water change weekly. I also have an air stone (turn on for a few hrs twice a day) in the back corner for extra oxygenation. I have moderate amount of plants in my tank, but they are mostly slow growing plants (moss, anubis, java ferns, and creeping jenny), but I do have a small patch of duck weed as well.
I intend to keep nano to small community fishes, so far I have
7 clown killifish
2 lyretail guppy
5 endler guppy
1 fancy guppy
7 red coral ballon platy
5 gold honey gourami
5 julii cory
All my fishes look healthy and gets along and all water parameters looks good, so far I only lost 1 lyretail guppy (I had 3 before) who did not eat for 3 weeks since introduced to my tank, and his belly was sunk in and look very weak before he passed away.
My question is how do I know when my tank had reach its capacity or if I can continue to add more fish? What other parameters you look for beside the basic water parameters?