i just bought some excel just to try it out and im worried about it killing my java fern. i remember reading somewhere that theres a way to still dose and keep the java fern from disintegrating but i dont remember where i read it, and i basicly bought it to test it out in my smaller planted tanks before i add it to my 180g which i dont want to run co2 on because of the cost and im running a sump. im eventually hoping to use metricide for soluble co2 in the 180 but again i want to make sure that my plants will be ok. is there any way to slowly dose the tank and avoid the java fern from dieing?