Brown stuff on zoos and paly's

bigfoot610

New member
i cant get a pic right now but i have some zoos that have this brown stuff on them i can kinda get it off with a tooth brush but what is it and has anyone ever beat it? not to sure what to do so i scrubbed them as soon as i finished i put 5 drops of iodide on them then waithed 10 seconds and rinsed them throughly this method keeps it off for a couple days and then it comes back. Please help thanks........Luke
 
Back
Top