Marty, thanks for getting back to me . No- this is just as round as it can be and flat, like I said I've watched it for along time to see if it would move, but haven't seen it . It's something thats really slow ,only after hours do I find it moved to another spot.
But thanks for the pic. because I think that is what I have on the back of my tank near the bottom ,just can't really get a good look at it yet. |