Hell no it doesnt need any maintenance you just leave it on running 24/7 ..I bought mine from my local grow store because if it breaks you just take it back with the receipt and exchange. Dude just trust me get that big ass one your plants will love you for it remember YOU CAN NEVER HAVE TOO MANY BUBBLES!!!!!!!!!!!!!!!!!!!!!!
i will be getting it dont worry. but i cant buy local, as nowhere sells anything decent around where i am, so il have to order off the web, probably in a few weeks, this is the last piece of the equipment ive to get. I do have 3 other air pumps, but there are much lower flow rate. So the grow will only be as bad as my weakest link and the pumps were the weakest link of the chain
