Originally Posted by deramuskyle
5 black phantoms
in a 20 gallon tank probable need more cover.
20 Neons = 20
10 glowlights = at least 10
inches (not sure if these are the ones that exceed an inch long
5 black phantoms = at least 5
6 cories = a minimum of 12
in a 20
gallon tank = tank is too small and would be overstocked with this many fish.
so following the math you would need a 47 gallon or larger tank. My math may be off as I estimated fish size and I know the neons I have are closer to two inches long. You can sometimes get away with a little overstocking if you really watch your water quality, but it is not adviseable. I think we all have overstocked a tank once in a while (like taking adults out of one tank and putting in another to keep fry from being eaten).
The tank itself looks great, I would just hope you change how many fish you choose to stock in your 20 gallon tank.