test kit

I've used a variety of different kits overany years of doing this. I've stuck with Salifert and dumped the others. Except for the PO4 test kit, it's to hard to read and was not accurate enough for me. I chose to buy the Hannah colormeter and have very accurate PO4 readigns from that. Definately pay the extra few bucks for the Salifert test kits.
 
I use Seachem and Im pleased. I compared results of 3 different tests with mt Seachem's and a friends Salifert's...results were the same.
 
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