There is an old school method, but you risk ruining the mushroom too. Like was discussed you can place it in a clean non toxic plastic cup with coral rubble and it should attach. I use netting, I think it's called wedding veil at hobby stores, and glue it over the mushroom. Now, I've been doing it for years. I know a lot of people who have destroyed their mushrooms by doing it though. They just don't like heavy flow.