Hey everyone, I have a 20 gallon long planted aquarium with a hob filter and a sponge filter. It runs at room temp, which is around 67 degrees F. Right now, it has 1 zebra loach, 7 zebra danios, 2 celestial pearl danios, and 1 hillstream loach. (Also a nerite snail and some shrimp.) The cpd and the hillstream loach cane from my brothers tank, as all there other tank mates did not survive. I was just wondering if this was a good amount of fish, if everyone in the tank is living to the best way possible, and if I can get some more celestial pearl danios, to keep their school a little bit higher.