Was keeping them down in my tank by directly injecting with vinegar, but had a few I couldn't reach or were to quick. Tried the Peppermint didn't seem like it was doing much before it went MIA.
Back to vinegar injections until I get bold enough to pull out the rock and go at them with a torch.
If I was to try a kalk paste, do you just turn off the pumps and place a blob over the hole they retreat to?
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