Also, be careful with your clowns if you do it. I had 1 Percula Clown about 2.5 inches and a Domino Damsel in my 60/65g Hex that I added my snowflake too, and within a few days, my clown had been torn in half. I thought because the eel was only about a foot long, the clown would be too big for him to touch, but I was wrong. So, it might be better if you get a engineer goby instead :p