IT is made of styrofoam and cement. The fish are jewel cichlids. It is my first attempt and im going to do a 55 and then a 75 and i will use what i have learned on this one to do a better job.
I was actually just reading an article about styrofoam molding being used to aquascape for cichlids...very interesting. Personally I would never be brave enough to put the cement on lol