We’ve been using Seachem’s Dose application for the iPhone and iPod touch to gauge our calcium and buffer additions and we like it so much we decided to bring you this video demonstration and review.  Dose is really easy to use and from our experience it is very accurate. With this app, gone are the days of SWAG dosing and the seesaw of calcium and alkalinity. On one our our systems, a 70 gallon frag network we used Seachem’s Reef Builder (naturally) and we used the Dose app to shoot for a target alkalinity of 7 and we ended up with an alkalinity of 6.7. Not a bad vavue and given all the uncertainties of water displacement and true water volume, we’d say this app is a keeper. The application has since been released for PC and MAC and it is still a free download so you have no reason not to try it out.
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