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Originally Posted by jimw369  Got 2 #3s and 2#4s. Seem very reliable. I dont think the 4s push harder or further than the 3s. The impeller on the 4s is just bigger so that gives more flow volume. I have a 90 gal and like the 4s. All I ever have to do is clean the impellers every 2-3 mos.
Jason: Those MJ mods are wild! Yea they will give you some flow! |
how big is your tank that u have four koralias?