Quote Originally Posted by Flower Child
They are like 4-500 for say a 20 gal res but I think we may see the market come down a bit as this tech is real mainstream now for the coral/plants/tropical fish and from the reading you may need a OPR (Oxidation Reduction Potential) meter... Because shock treatment will mess with your mag. and iron....ooh one more meter I need! But to treat incomming water...excllent
But if you are useing Rock Wool or have ever had pith or gnats... I would spend the $$$
FC
http://www.drsfostersmith.com/Produc...1&N=2004&Nty=1

This one for fish tanks has a meter built in and is relatively inexpensive.
Alexp Reviewed by Alexp on . Ozone Water Treament way to GO!!!! These are getting very affordable now with small aquirium units that work well for hydro... also increase O2 Now you can run w/o chillers utilize higher res temps for better root growth and nute/gas exchange, no chemicals... a must for large systems.. If you have ever had gnats or pith you know what I mean! FC http://www.enaly.com/OZX-200AT.htm Rating: 5