is this flexible plastic canvas reef safe?

[Pedal Dangit]

I got at the local hobby store. it is soft plastic and bends... I had heard somewhere that hard plastic = safe but soft plastic = maybe not safe

I really hope it is OK I need some algae screening on my refugium return drain

 

[WVNed]

I use it. It is also used in making algae scrubbers

 

[brandon clow]

I also use this for algae to attach on the water entry baffle to my refugium. I sanded it some though so it's not as smooth.