Is the Concrete the only option when it comes to sealing the styro? I Want to make a background for my soft water fish so I need to be careful of high PH levels. Plus I don't really want to use the cement and i'm not too sure if I can get the concrete products you guys are talking about over here in Australia easily.
vid from youtube using guick right for diy styro back ground is this fish safe to do?
- Thread starter skillzizzo
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