Since there are only 25 people in Sweden - 21 threads seems like a lot :):):)The Swedish saltwater scene is very much smaller than the US market, but I did a check how many disease related threads there was in the Swedish forum during the last 18 months – it was 21. We import from the same sources that you do; we do not have access to the same heavy drugs that you have, and it is not to do chemoprophylactic treatments. Even use of observation QT is rare. Seen during time – ich is the most common disease.
There are some differences – 95 % of the purchases goes via a LFS. We have very strict regulation of transporting vertebrates and no domestic airlines do not transport living animals. The LFS is mostly specialized saltwater shops, hence often enthusiasts making a living from their hobby. We have very strict laws according to consumer rights. Every LFS know that during the first 6 months after the purchase must prove that the fish was not sick (or had other faults) at the moment of purchase. With other words - The burden of proof lies on the one who sold the fish during the first 6 months. The supply chains is often very short – direct import from exporting countries to LFS is rather common.
All this together has led to very responsible wholesalers and LFS. It is very rare you see a sick fish at a LFS. Either wholesalers or LFS use chemoprophylactic treatments. Use of chemoprophylactic treatmens are very rare in the Swedish society overall. One of the LFS I nowadays sometimes buy my life stock from (yes, I buy from other than my friend) has a bad reputation according to saltwater fish a couple of years ago. They conclude that they had a bad supplier and change the supplier to TMC, UK. Before I use to say to them – If I should by from you – I will buy it direct in the bag or wait for 4 months – if it still alive at that time – it will manage everything :) Today – they have very good quality and I buy from them now and then.
A whole other thing. People that have been following me knows that I am a huge fan of using hydrogen peroxide as treatment and that I constantly run a low dosage in my aquaria. Never less – I will rise a warning about using this in prophylactic treatments protocols. Norwegian fish farmers have reporting more resistant population of sea liches after a couple of years use of H2O2. There is indication that not all sea liches die, and that the evolution pressure forward more resistance therefore is high. This seems to contradict my recommendation to use oxydators but I think we have partly the same effect here as with low Cu levels or low ozone management (IMO – the use of low Cu levels in LFS and wholesalers have nothing to do with disease management – it is labour management) The dosage is not high enough to force the evolution in direction of resistant populations (non or very few parasites will be killed and hence their set of genes will not disappear) and in the case of oxydators and low ozone concentrations – the overall health effect with higher oxygen levels and other things will do the environment better for god animal health. The reason why I run the oxydator is because it takes away a lot of the yellow substances in my aquarium with high biological turnover – not primary for disease management. However – I have noted that people with oxydators have lesser or no problems with diseases in the long run. If – I see signs of disease or suspect anything with newcomers – I rise the dosage for a couple of weeks. I will never run without one – at least it gives me more self-confidence that I will manage a healthy fish stock.
With other words – there is no chemical whatever that is number 42!
Sincerely Lasse


