mark peacock
marine67
I have just dropped one into my tank and i can not find it anywhere do i need to worry about it i was hanging a pic on the wall and it went straight in:doubt:
^ but brass does contain copper...
i have a closed top lid on my tank which approx 8inches high from the tank edge so no worry about anything going into my tank the pin when through the hinged part of the tank lid 1 in a million chance of this happening.This doesn't answer your original question, but you might want to rethink hanging a picture above the tank... if I'm reading between the lines correctly. (Unless it's just a paper poster, or something like that.) It'd really suck if a framed picture falling off a wall for whatever reason ended up breaking your tank. That's why I removed everything from the wall behind my tank.