This is my second planted tank, first was a 5 gallon, this one is 55 gallons with a sump. I inject CO2 and use the Seachem fertilizer line. I have neon, glowlight, cardinal, black neon, rummynose, and blue tetras; harlequin rasboras, otocincluses, blue neon goby, nerite snail, Siamese algae...