I have recently bought a 20 gallon tank and I so far have 5 tiger barbs (2 of them are green) and a cory dora. How many more barbs can I put in there to the limit . . . .
Is this a 20 long or tall? You should have more corys in there, they are schooling fish, 3 is a good number, and you have plenty of room for 3 of em.
