I have a 75g tank with the dimensions of 48"x18"x21". I'm using ADA new Amazonia aquasoil. I have 4 t5ho lights ran off two timers, and each timer controls one 6500k and one rosette colored bulb. the first timer comes on at 10am and turns off at 9pm. The second timer comes on at noon and turns off at 5pm. I'm running 2 fluval 405s a koralia 250gph powerhead, and a mp10 set to about 2/3 power running on lagoon mode in the tank. I also inject CO2 through an inline diffuser from a 5# tank at a bps which is higher than I can count. My drop checker stays lime green, almost yellow, and if i turn it up even slightly higher my fish begin to gasp for air at the surface of the water. And I dose EI according to this, http://calc.petalphile.com/
, nutrient calculator.
tank parameters are:
Nitrates: ~60ppm (which i feel is really high, even though I do weekly 50% water changes)
PH: Fluctuates between 6.5 at night and 5.4 during the peak of CO2 saturation.
So, the issue I'm having, I planted small plugs of HC very close together over the entire bottom of the tank a few days ago. The first two days they were in the tank they looked perfect, exactly how they looked when i received them from www.aquariumplants.com
. Then, on the third day some of them started to turn a dark green, others started to melt, and only a few of them remain in the same condition they were when I received them. This is the second time I've tried growing a carpet of this particular plant and this is the second time that I'm getting the same results lol. The first time was in this same tank with the same equipment and they only lasted about a week until mostly all of them were dead.
So what am I doing wrong? lol I feel like there must be something that I'm just missing, and I just can't figure it out.
I'm relatively new to the hobby, and this is the first time posting on this site. So please don't burn me at the cross if forgot to mention something important about the tank, or if i just sound overall ignorant to everything that's important lol.
Thanks in advance everyone!!!