Seachem MultiTest Phosphate Test Kit

Given the strong reputation of Seachem, I expected this test kit to perform well at measuring phosphate levels that I was trying to achieve by dosing for my freshwater planted tank. I found it inaccurate; It came with a reference solution that it did not match. Secondly the range it tests for does not go high enough for the typical phosphate range (2-5 ppm) that is desirable for freshwater fertilizer dosing. I subsequently switched to API that I find much more suited for my needs.

It's a simple test, two reagents, 1 tray. It's pretty accurate as far as I can tell, I just did not like the way I had to do the tests. Fill the dropper full, put in tray, add reagents, then stir with the included stick. I chose to buy the API version instead.

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I think this is a very good test kit. It's easy to read compated to some of the others out there. I always have trouble with the colors, and this being in a white dish makes it much easier to figure out. I will purchase more of their kits as needed.

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Doe not look like all my other Seachem test boxes, at first I thought they sent the wrong thing, I have not had time to try it yet but I'll edit the review in the next few days. The API test is pretty useless. It always says the water is OK when it's probably not.

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If growing creatures in your aquarium such as SPS corals, Clams, etc., that require phosphate levels below 0.04 ppm this is the test you should use, it has a precision of 0.05 ppm. This is the most accurate phosphate test kit available except from high end electronic kits, and the more expensive Salifert brand, the rest are simply not accurate enough to raise these types of creatures. Most have a maximum precision of 0.15 to 0.25 ppm, not enough precision considering that above 0.10 ppm most SPS corals will slowly decline and eventually die.

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