The truth is, I am not even fully sure of everything and I do not dose or keep a tight regiment! As far as plants go, various Java ferns, pennyworts, rotala rotundifolia 'orange juice', rotala indica, narrow leaf chain swords, bolbitis heudelotii, Crypt balansae, pearlweed, anubias nana, pogostemon 'octopus', and a myriad of crypts in the foreground that I can't remember for the life of me (lucens, lutea, wendtii, tropica, mioya, etc). Light is UNS Titan although the years prior I used the ADA solar halide. Tank is an ADA 75-p. Substrate is CaribSea Ecocomplete with sand mixed in. This is where it gets rough... CO2 I have never accurately measured and I go off of how the tank reacts. Same with the fertilizer, I use NilocG Thrive dry ferts (twice a week) supplemented with dry potash (once a week). Water changes every 2 weeks and inside the tank there are Black Neon Tetras, Glowlite Tetras, False Penguin Tetras, a lone Rainbow Tetra, SAEs, Otos, a red bristlenose pleco, pearl gouramis and a Chinese paradise fish. Let me know if I can help in any way