Read APD and Paul's comments on dying BGA vs healthy.
Same deal with plants that are hurting, snails will eat them as well

I'm very skeptical about herbivory, but everyone should be.
It took me several years to convince myself that SAE's can learn to maw R wallichii.
Many years to convince folks that smaller snails do not eat plants as was claimed for decades..........
Recently I've been convinced, and then only with a lot of proding that larger preg Cherry shrimp eat one red colored plant variety.

But as you can see, such events are very rare............


Regards,
Tom Barr