as the title says its a dumb question but i wana now be for i do it i have a 65gl brackish tank with just my freshwater moray in it my question is i see people have the clay like flower pots in the tanks for hiding and looks i wana to do that for my eel cuz i think he would like it alot better then what he has to hid in but i was wondering if i do it will it rase my PH mess with my water and so forth and if not how do i clean it to put it in my tank thanks guys