More info on the Leva:
I then read about the Levamisole on RC, tracked it down, asked a few questions to be sure of the dosage and dosed the tank using the same precautions as with the FWE. The next day there were no signs of the Red Planeria anywhere. I redosed again after 1 week, there was not a sign of a FW anywhere.
As I now had a Manderin and DFP's, i was extremely worried about my pod population, but the amount in my fuge had actually seemed larger without the FW's. I don't know if there is any relation between the absence of the FW and the boom in pods, but I was relieved to see them all over the place.
Having taken some rock from my reef and adding it to my SH tank, I decided to dose that tank also, again no deaths of anything but the Planeria.
As i said, in both the FWE and LH treatments, some snails and micro stars were stressed, but no deaths that I could see.
I will say, that in the past year, I've had to redose the tank twice, not because of any in the DT, but because I had some pop up in the fuge, a few, but not many. I'm assuming this is because I have no predators whatsoever in the fuge. Each time, I just shut off the carbon, dosed and turned the carbon back on after about an hour with no WC. I don't know how FW's reproduce, but I'm guessing there are eggs somewhere that are not being effected. Possibly a once a week dosage for 4-5 weeks might take care of them permanently, I'm not sure.
The mix of LH I used was 1/2 TSP LH to 240 ML of water, then dose at 1-1.5 mL per gallon.
I went with 1.6 ML per gallon.
I have read that OD'ing with LH can be a problem, maybe that was what happened in your case with your dip. I tried to use it as a dip once and killed a few Yuma's. I attribute this to an OD as it is very hard to dose such a small volume of water accurately. I had the same Yuma's in the tank when I dosed it and they showed no signs of stress when dosed in the proper amount in the tank.
In the end, I honestly don't feel this is a harsh method to eliminating FW's.
