I have 2 Marimo moss balls in the same planted tank that I've been slowly working on. 1 is a deep, luscious green and the other appears to be dying. When I squeeze the healthy one it is very firm and when I squeeze the other one it's very mushy. I dose Flourish comprehensive weekly and Excel daily. Is there anything I can do? Any particular nutrient I should dose?
Edit: Forgot to mention I'm using two 15 watt spiral CFL's 6700k. and the tank is 10 gallons.
Edit: Forgot to mention I'm using two 15 watt spiral CFL's 6700k. and the tank is 10 gallons.