When we talk about P04 this means phosphate levels in aquarium water right? if so i had so much phosphate in aquarium water that my readings was 5 ppm not point 5 but 5 test kit was dark blue and i was still getting green spot algae on my anubias plant. a new leaf would grow and within a week i could start to see green spot algae on new leaf.this was with the E.I dosing. Now i went from E.I to PPS system to try. i put in some seachem phosphate gard to bring my phosphates back to 2.5 ppm. still scratching my head as to why i still get green spot algae.
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