Stainless steal mesh woulndt hurt the tank Balance .. It would it rust in acidic water...
Stainless steel will not rust in a freshwater tank.
WIlll rust harm the fish/shrimp?
I'm worried about using stainless steal because from what i've checked it's water resistance isn't forever.
Rust however, will hurt the inhabitants in the tank. My friend tried to use stainless steel in a saltwater tank, not a good idea at all.