I have a male pearl Gourami which I purchased on Nov. 16th. He is alone in my 10 gallon QT tank. The other day I noticed 3 little brownish black spots on his nose that I hadn't noticed before. They were maybe .2" and looked like raised freckles. Today they are not there. I haven't seen him flashing and he is eating fine. But I did notice once or twice him shaking his head. I am concerned that it may be fish lice. My questions are:
1) Should I try a salt dip? Even though I don't see the 3 spots in question how can I tell if juvenile lice are on him? If I do a salt dip what concentration of salt/water? I have a clean 5 gallon bucket I use only for fish that I could use.
2) What medication should I use to treat the tank? I've read to use products containing organophosphates or Dimlin. But I think Dimlin is banned in California. What products contain organophosphates?
3) Is there anything else this could be?
I am going to go to the LFS that I bought him from to see what advice they give and what they have available to treat with.
Has anybody had experience treating fish lice? I would greatly appreciate any advice. Thanks.