ya I have been to Marine Solutions a few times they do have some good stuff and I have also been to Aquatic Treasures in Fairview which has alot stuff is there anymore good places around this area
JW, if you like I can email a link that gets you a list of pretty much all the good local stores.
Since you're in Madison, have you been to Nemo's Pets in Granite? Not the best, but not bad.
ya I've been there that were I have been getting my RO water from lately because I still need to get a unit and also send me an email of that list it will be perfect