Faux rock backgrounds

[Knr499]

So has anyone had any experience with these in a reef environmen? I think they would be cool if you could get coral to grow on them. Any thought?

 

[Who me?]

I had a similar one in a tank about 10 years ago.. no real negative I can remember other than not being able to put a power head on the rear glass.
... And the inability to easily pull it out if it gets overrun with algae or pests.

Algae and coral grew fine.

 

[MoshJosh]

never used one in saltwater, but used one from Universal Rocks in my freshwater setup. I did not have any issues, but I have heard if you do not wash them thoroughly (sometimes even if you do) they can release some gunk into the water. I washed mine well and had no issues. Sorry not reef experience but something to consider.

 

[Who me?]

Also be sure to seal the edges well, you don't want stuff getting behind it, is nearly impossible to clean if that happens.

 

[Biglew11]

I was thinking of gluing, cementing rock rubble to egg crate to make a back wall covering.

 

[Slocke]

King of diy has one