7g cube filtration question

Cory Keeper

LED Guru of Aquaria Central
Aug 7, 2007
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alright, so I'm planning a 7g tank that measures 12"x12"x12", and its going to house a single DP. It may house some oto's, depending if they get along. Its also going to be heavily planted.

Now, I've got just about everything figured out, save for filtration. I'm a bit stuck here. I've already got 1 AC 20, do you think another AC 20 might be overdoing it a little? These things are super quiet and I do live overfiltering and these guys are messy.
 
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