cschum00
New Member
My betta is in a 5 gallon tank. I'm using the filter that came with it. But I've been reading and am wondering if I should use an undergravel filter instead. What do you guys think? Also I have two 10 gallon tanks that I do water changes on. I only change out 20 to 30% water each week. But I've been reading and I've seen alot of people doing 100% water changes. What do you suggest?