@I Like Rare FishYour tank is overstocked. Did you cycle your tank? How many water changes do you do?
Really? I'm going off AqAdvisor and it calculates to 70% stocking capacity for a 20g long. The CPDs were not really planned, I took them in as rescues from my neighbor a couple months ago. Would it help to add a sponge filter as second filter, or do I need to relocate fish? Happy to hear any advise.
I did do a fishless cycle with ammonia/fish food for one month. Tank is now more than 6 months old.
Water changes 30% per week.