75g Discus Tank said:
If you’re unsure of how many cories you want to add, I would do it this way to make sure the spike in ammonia, nitrites, or nitrates won’t affect the fish too badly and you can see where the “perfect” stocking level is.DoubleDutch said:Just curious : Why would you add 1-2 corys at the time in a cycled tank (assuming it is cause I wouldn't add corys in an uncycled one). Everytime when you do this there is a risk of bringing in new diseases / contamination. I would always try to introduce a complete group. It also prevents the first ones to stess out (again a possible cause for diseases). Also when healthproblems you can treat all at once.