What type of nem?

[Lampshade]

I used lemon juice on mine. Picked up a bunch of LR that had 10-15 majono's, now i have 0. Worked well, it took a couple of injections, but they all went away. I found the best way was when i was able to used a syringe and inject until they expanded with the juice, if i just squirted them they would come back.

[Snappy]

In my experience you can just pull the rock out of the tank and scape it off with a knife. Make sure you get well under it to take the whole foot.