If the rock smells like the sea (assuming you know what the sea smells like), then its most likely fine. If you get that gag reflex, then something like sponges or snails have died on or near it and the rock needs to be dealt with before you can use it in a tank.
__________________
If you see it, can take care of it, better get it or put it on hold. Otherwise, it'll be gone & you'll regret it!
|