[Sargasso]

Will typical off-the-shelf plumbing cement harm my fish? Do I need to use aquarium safe sealants for my standpipe?

 

[Nicklfire]

stand pipe, could you clarify?

 

[Mech Eng]

Most of the plumbing cements are drinking water approved and should be OK.

 

[jkcichlid]

As long as it says "for potable water" on the can, you're good to go
BTW most of them are fine