"I bought this for a fish tank I was starting for my son. I've been wanting to put Legos in a tank for a while and Im happy to report they do amazing. This set was well designed with some cool accessories. My son had fun playing with it before it went in the tank. The set has been in the tank for a few months and is holding up well. It cleans nicely when algae inevitably starts growing on it. Definitely a good buy regardless of how you play with it."