Universal Rocks Background Discolouring Water

[KAWAMIKIE]

Do the backgrounds discolour your water?
I purchased the flat sheet Universal Rocks background from a bulk roll at my LFS.
The background is very dirty left my hands black while handling it. I wiped the back of it clean with several wet paper towels to remove the film so the silicone would stick. I rinsed the front with warm water before filling the tank to clean off any residue. I filled the tank last night and this morning the water was brown, and a brown film on the glass after I drained the water that I had to use a razor to remove.
I have well water and used Seachem Cichlid buffer to bring up my PH. I had no substrate in the tank. I never had this problem with other tanks. The only thing I did different was use the background.

[clgkag]

I didn't have any issues, but bought mine used.

[runr986]

used universal rocks backgrounds previously on 3 tanks. have never really had a problem with discoloring the water. hope it clears up for you

[spas]

Same here - I always first layout it on the drive way on top of some styrofoam and wash it off with the garden hose. Never had any issues with these backgrounds....

[KAWAMIKIE]

After scrubbing and washing several times it stopped discoloring the water. I wish I knew this would happen before I installed it. Its now going to be a royal PITA to clean the background that siliconed into my 150.