06-13-2009, 11:36 AM
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While the API master kit seems to be the standard bearer for value and accuracy, it takes a fair bit of time to do. If there were a product that were as accurate as the API but sat in the tank and at a glance I could know the parameters at any time of the day, that would be worth a fair bit. The conditions I'm most concerned about are pH, Nitrates, GH, and KH. Ammonia, nititres, and chlorine are never and have never been present so I rarely even bother to check anymore. If there were something like a glass tube thermometer floating around all the time and I could pull it out and see all 4 of those values accurately and clearly displayed, I might be willing to pay up to $10 per month of it's useable life (i.e. if it's accurate for 4 months, I wouldn't pay more than $30 or 40 at most, if it lasts a full year, I might pay $100 for it).