Thanks for looking. Just been off work with hip replacement surgery so I thought I would play around the web site and post a few pic's. and I love the site. Great job. I moved up from a 90 to the 125, 40 gallon sump and 20 gallon refugium. I don't add anything, found out that if you just let it do what it's meant to do, it seems to go well. I don't overthink it...Filtration is the key.