I've read on other sites about doing a fresh water dip before adding fish. We don't have a quaranteen tank set up ( what would I need for a small makeshift one) and I read that doing a 2 to 3 minute freshwater dip would kill off some parasites (something like that) does anyone have any experience with this. I haven't added fish yet. I want to get a few more things for the clean up crew (another post on that). They are fun to watch for the time being.