Guppy Street

Thanks for the response. I should have mentioned that I am currently using the nano pumps. I do love how quiet they are but they are not quite giving the power I desire. Not to mention all of the power cords I have pluged into one outlet. I am searching for a one pump system using a gang valve. I wish the linear piston pump was in my budget. Sadly, its not. Thanks

I hope someone can offer some fish keeper Veteren advice. I am trying to source the best air pump for my current needs. 6 medium and 6 small CoOp sponge filters, all in standard 10 gallon tanks. These tanks are in my living area, so noise level is a major priority. I am also on a fairly tight budget. In addition, is there a standard gallon per hour to achieve proper filtration? How do you calculate air needed for 12 filters. Thank you for any advice.