Hi Im REALLY super interested in this but I do have a question - besides the question above mine, has this been used in a fish tank already, and if so, please let me know if there were any fish illnesses present and what kinds so I can properly clean it.
This item was put into a new fish tank but before we bought the fish - and then we decided to put a big wrecked ship instead. So it has been in the tank but there were no fish in the tank yet.