is styrofoam reef safe

[711reefer]

i need something that floats and wanted to make sure there is nothing nasty in styrofoam that could leach anything harmful into the tank

 

[Diesel]

To my believe it is.
In the wholesale they use styrofoam to float corals in bags as they won't get damaged by rolling around.

 

[Labridaedicted]

Short term, yes. Long term it will break down and leach chemicals. Consider sealed pvc pontoon style to float if you need a long term fix