mattywatty
Aquarium Advice Newbie
okay here is the question, is there such a thing as over filtration in a planted tank? i have a 20gal with 5 tiger barbs, a red tail, and 2 gold barbs and a handful of plants. right now i have a UGF with air stones that is robbing my plants of CO2, so i want to get a HOB power filter to replace it. petsolutions.com is having a sale right now on AC Power filters. according to the specks from the website the AC mini (100gph) has sufficient capacity for a planted tank, and is only $12. but... the AC 300 (300gph) is only eight dollars more, going for $20. so again the question, would it be bad, or not as good for the tank if i got the AC 300? what would the AC300 do to the system, would it create sufficient water circulation with 15+ revolutions of the tank water?