So last week I traded in my piranha shoal for 2 red tail Payara, which I'd been searching for for a while. I have them in my 150 tall (4'x2'x31") and they seem to be doing great. I've had them since last Wednesday and they're very active. They eat in front of me with the lights on which is awesome because they aren't shy at all. I am using 2 Rena XP4s and 1 ac110 for filtration, and I have a koralia 1250 powerhead. So far fish seem happy and healthy. I've read pretty much every post on Payara on this site, I've practically memorized the Payara captive care sheet, but I'm just looking for any additional input. Is my setup alright, do I need another powerhead? I'll take any and all advice I can get from you super knowledgeable Payara owners ( I'm looking at you Vamptrev! You seem to be THE MAN when it comes to these fish!)