yes, do the overdose daily. what doesnt die off you can spot treat with a dropper or syringe, this kills it immediately (turns white by the next day as if chemically burned) i spot treat on mosses and it doesnt seem to harm the moss at all. just make sure to do water changes as it will build up over time and excess chemicals of any kind are not good for any tank, even though excel breaks down rather quickly it does leave byproducts. |