A question about Koralia powerheads

[Delphinus]

I have two Sunsun's in my 115 cube. They are AWESOME. Two solid thumbs up on these guys.

Neal, of course everything depends on different things like tank size and shape, but for the most part, it's difficult to overdo flow.

Ryan, there is one possible detriment to the Maxijet Sureflows .. at least I found this. The impeller shafts last only about 6 months or so, and then they corrode through. For $20 it's a not a huge deal to go out and buy another but I stopped buying them - I want my powerheads to last longer than that and I'm not sure what baddies are getting into the tank when things rust. It's obviously not a high grade stainless steel or titanium, whatever that shaft is made of. I've gone through at least 5 or 6 of them and they all met the same fate sooner or later (the corroded shaft).