I want to share a little bit about ich (White Spot) which I learnt this week at college to some of the people who don’t know a lot about this disease, and tell them what they should.
White spot is a Protozoan disease. "Protozoans are organisms, such as cryptosporidium, that have a life-cycle with several stages.
As the name suggests (white spot), the fish is covered, head to tail, in small white spots/dots which are small organisms surviving by using a fish as host. The spots stay on the fish for 24 to 48 hours, and then they fall off into the substrate and then breed producing more organisms which then they search for another host to survive, which has to be with in 24 hours or the organism dies.
Treating white spot isn’t as easy as you would of thought, because the organisms attach them self’s to the fish rather than the mucus surrounding, it is impossible to kill it while it is on the fish as the fish's coating are protecting the organism and therefore the only way to kill it off is to kill it while it is off the fish.
Treatments: Salt bath - 1 teaspoon per gallon, this works as a good general treatment and helps to distress the fish, but often salt is not affective enough. See Goldy's post on using salt(<link) for more information on using salt
Protozin treatment- (malachite green and quinine sulphate), there are some treatments already made up by leading companies like Waterlife's Protozin which is effective to kill the organisms which you should be able to buy at your local fish store.
Increasing the temperature- at 80oF, white spot has the shortest life cycle and will be "flake" off the fish a lot faster than a colder or warmer temperature. This can be done easily by increasing the dial on a heater.
Moving the fish- There is also the option to move the fish to another tank at the same time during every day, when the fish has less spots on its body, every 12-24 hours as you would stop the cycle.
This can be done easily by increasing the dial on a heater.
Methylene Blue- Like salt, it is also a good general treatment, but it is a lot better at killing white spot, it will also improve gill efficiency. Methylene Blue is available from chemists and some aquatic stores.
One thing you need to remember is that white spot can stay dormant on a fish, and if the fish is stressed too much, white spot can return.
Re: Fish Health- ICHthyotilus muliffiliis (White Spot)
I came home last night, and noticed what must apprea to be white spot on my 4 neons. All the other fish are fine. Some good info there, but as normal i got confused over the salt. my tank is around 125 Liters / 33 gallons. So 33 small spoons of salt, over 3 days? Am i correct?
I have Whitespot treatment comming in a few days. So shall i try the salt? or wait?