Gastropex is harmless to fish, they wouldnt be allowed to market it 'for use with fish' if it wasnt safe. They'd be open for all kind of problems like being sued if someones fish died otherwise!
Assuming instructions are followed corrctly and the water parameters are within what it says in the small print of the instructions... they will be fine.
Im pretty sure Primous can read fine
Assuming instructions are followed corrctly and the water parameters are within what it says in the small print of the instructions... they will be fine.
Im pretty sure Primous can read fine