i've had these driftwood for about a month from a previous owner and he said it doesn't leach no more comes to find out it does leaches still -___- so i soaked it in a cooler for a week drained out the water 2x a day and i added it in to the tank and it leached a little. i do weekly water changes but i dont see any diffrence. my question is when is this going to stop and become crystal clear?