So now that I found me a refractometer on kijiji in great shape and cheap I'm now looking for a magnetic power head as I'm really really tired of the suction cup slipping power heads....
Found this after a quick search and wonder if anyone has heard anything about these?
http://www.ebay.com/itm/800-1300-160...-/281092421766 Was just looking at the 800gph model.
Thanks.