To be fair I have only had the phosguard for a few weeks the phosphate was at 0.16 before and has only just started to to come down 0.08. Also I'm not sure I trust the test kits entirely I'm using a Red Sea comparator. I normally do water changes every 1 to 2 weeks and about 20% water change i have an r/o unit maybe need to change the pre filters but think the membrane is fine as the tds
is 1ppm. Do you think I am on to a winning battle. I done a water change and week ago and pulled out masses of algae but slowly and surly it is growing back again with the phosphates at 0.08. I also have an algae blenny and a tang that is munching through it I know is dosent remove the phosphate tho. Would adding a uv
filter help? Would lowering the brightness of the LEDs help? Also a friend told me that raising the alkalinity to 12 will stop it but am reluctant to try this as have not read any evidence of this being true and could cause more harm than good I the tank.
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