I have been having problems with camallanus worms in one of my tanks. I treated 1 week ago with sera nematol as per instructions whilst waiting for some levamisole ( Esha - ndx ) to arrive. I treated with the levamisole yesterday and as per instructions carried out a 50% water change today. I notied whilst vacuuming the gravel a large wriggling creature. It was still alive. It was over an inch long when stretched out and I was told camallanus worms arent that big. It may be a leach, whatever it is it seems to have survived both treatments. I have attached a photo which is the best my cheap phone could get. Does anyone know what it is? If its a leach should the levamisole killed it?, Should I start treatment again straight away or continue as per the instuctions ( another treatment after 2 weeks ).
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