Hi everyone! I'm new here so give me a break but any so I've had this 20 gallon long tank set up for about 4-6 months now. In my tank I have: 2x 20 lb. bags of eco complete substrate 2x 24 watt t5ho lights from zoomed 100 watt heater marineland c-160 canister filter for up to 30 gallons milwaukee regulator and solenoid (1-2 bubbles per second) co2 thermometers etc. ( the lights and co2 are on a timer for 8ish hours then an aerator comes on when they are off) ph around 7 soft water around 3 flouish trace/ flourish no fish or anything but had a nerite snail dye because of lack of O2( hung out at top of tank) im growing: dwarf hairgrass, myrio green, baby tears( not dwarf), crypts, pennywort ****The moral of the story is that my baby tears are growing very slow and browning at the tips, I had Amazon sows in there multiple times but it kept turning brown too and mushy, I also had cambomba green and it just melted away!!!! The hairgrass is beginning to fill in but slowly... What am I missing or have too much of hellppp!! oh yeah and my water is always a greenish yellow tint and I do 1 to 2 water changes a week and there is a thin layer of light green algae on my hair grass sometimes even if I lightly vacuum the grass, just to remove any big stuff.