Hi guys..New to the forum and have a quick question about your pump...Would a fishtank powerhead be more efficient for use as a water pump...I have used them in fishtanks and you can add a tube onto them to mix oxygen into the system so it would be the only thing needed...The best part is they are cheap and reliable...They are also good for salt and fresh water systems..
Your system looks good...I hope to have 1 up and running soon.
Scott