Prazi won’t kill hermits, that was coincidental. If you are using Prazipro, the solvent used in that is like carbon dosing and nitrates will sometimes drop as a result.Thanks
I checked on ebay and I found some for sale (I'm in England where I have never seen it in an LFS) fastest delivery will be August 1st or 3rd, I leave on the 10th so to play it safe I'll have to treat when I'm back. Luckily, the blenny seems better today, I have fed heavier and it seems to have also maintained its weight from yesterday, the infection seems to have gone too.
When I did prazi last time, not long after I lost one of my hermits, could it be due to it? It also seemed to have stripped nitrates down to around 0