As some of you guys know, the native fish group ANGFA had a field trip up at Cairns recently, and I was lucky enough to be able to make it. I will be giving a really informal presentation on the trip at the meeting Saturday. It'll probably just consist of looking through the photos from the trip and chatting about whatever interests people. So I dunno if that prospect is an incentive or disincentive to come, but there you have it!
I look forward to catching up with as many of you as are able to make it :)
I would put the whole tin in the freezer, but put a week or two's worth in another small airtight container and put these in the fridge or in a cool place near your bss hatching setup. This saves opening the tin too often, and each time letting in air and moisture. I'm not sure that the lid on the tin provides a great seal, maybe a different container would be better.
Velvet and whitespot are not the same organism too, some of the info given was for whitespot, when originally velvet was the topic of discussion.
I don't think it impossible that pathogenic organisms are present in tapwater, but I doubt it's a factor in most infections. Many of us have had the experience of outbreaks occurring where no waterchange or cross-contamination has occurred. It might be true that some of these organisms do not have a dormant stage, but whether this is the case or not, a dormant stage is not necessary for an outbreak to occur without anything being added to the tank. A very low background level of infection with these parasites could be the norm, so low as to be non-symptomatic. But if stress occurs, as Lilli says, it's a story as old as fish keeping, the parasites have a higher success rate due to reduced immunity and -bang- symptomatic infection.
Treatment is the number one thing for Tesla! Copper based medications have long been recommended for velvet, among which Protozin is an excellent choice (Just so that we aren't seen as relentlessly plugging one product, another might be Cupramine )
I think ppl have also answered re the small dose issue, but I will offer my work arounds too FWIW:
One is hardly complicated, many chemists will sell 2ml syringes which might have gradations small enough to be of use. Some may sell smaller, but you might need a medical supply place, or to get them from your vet.
Another option is drop counting, there are supposed to be about 20-25 drops a ml for liquids of a similar viscosity to water. This is only approximate tho.
Third is to reduce the concentration of the medication you are using until the volume you need to measure out is big enough to do so accurately. So instead of needing 0.2 ml, if you took say 5ml of medication, then diluted it with 4 times it's volume of water, you would now have a solution which is five times weaker. So you would need 1ml to get as much of the active ingredients as was originally in 0.2 ml. This is an option I use.
Here's hoping that our discussions have been of some help to you, and that Tesla is on the mend already!
Did any of us take photos? It was a Future Champions show so the fish were all 1' or less in length. I was really impressed with the quality, given the shrinking gene pool we have to work with in Australia.