Thanks I'm glad you liked it and are now thinking about zeo It's a great system to run on a tank and you get some awesome results from it! Feel free to ask any and as many questions as you want, hijack away but I'll keep my eye out for your new thread about converting. It's a pretty simple process just takes a while before you'll really see it kick in but once it doesI just read your tank thread. Great job. You have sold me on the Zeo. So I think I will start a post asking how to convert a tank thats been running for years over to Zeo. Please look for the post as I dont want to steal yours. Thanks again.