Hi there, I have read through a few posts on high nitrate but none quite match my situation. My tank is about 6 weeks old and uses 85% RO and 15% tap. The nitrate reading is bright red - I’ve never seen a reading so high. The tank is high tech, 70 litres and heavily planted and the fertiliser is evolution aqua 4 mils a day but I’ve dropped to 3 mils. I’m seeing some green hair and brown algae too. I know I should try the DIY fertiliser route but I’m not ready to at this point. I’m hoping it’s just because it’s a new tank and it will calm down soon but I’m also wondering if I’m dosing too much fertiliser and if I should try seachem purigen to help. I’m doing water changes every few days now but it just shoots back up. Thanks for your help!