I recently got an Aqueon Evolve 8 gallon tank. It has RCS, a betta, and a nerite snail. It comes with a stock LED light. They was no information on color spectrum, wattage, or lumens that this light produces. I figured that low light plants would be okay. I do not have a CO2 system in this tank. I used Nutrafin plant grow liquid fertilizer until I got the shrimp. I read that the copper can be bad for the shrimp. The amazon sword I put in last week os looking pretty bad. The leaves are wilting and turning brown. My thoughts were to get some root tabs and maybe switching to a cfl lamp. I may be over analyzing since the tank has only been set up for a week. What do you think?