hartman57
Aquarium Advice Apprentice
i went to the local stream and found some bigger rocks to build caves with. i scrubed them and soaked them for 2 days. now i am ready to put them in and i scrubbed them again and tried to wipe them with a towel. when i did this they are leaving brown stuff on the towel what is this and what should i do? should i put them in? or get new ones and whenre from?