phosphate question

I have a Red Sea Phos test kit. It reads 0.1 ppm all the time - even with the solution I dose with !!! But I find I ahve algae probs when ever I dose even as low as 0.5 ppm x 3 x a week. Suppose I get enough from the fish food and waste. Suggest leave it out and watch
Maninder

The conclusion I jump to in this case is that your test kit is not working.
 
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