As anyone who reads my journal knows, I have had lots of problems with oodinium/velvet with my wild bettas for a couple of years now. It is a recurring problem and one that is highly frustrating for a diligent fishkeeper such as myself.
Anyway, I have been trying to figure out if anyone knows how long this parasite can survive without a host.
It seems answers on the net have been varied from 24 hours right up to 3-4 weeks even in tropical conditions.
I have quite a number of plants in a tank where the fish have died, but appear to have been infected by velvet. If I had money I would simply throw them out and purchase new plants, but I am broke and it is a lot of plants and so I would like to use them in another tank if I could.
Right now the tank has been empty for a number of days at a temperature of around 25 degrees celsius. I was considering doing a course of protozin on the tank just to kill off any free-swimming dinospore that might be remaining.
If anyone familiar with this parasite has an answer for me that would be great. It's doing my head in as it is, and I don't want to run the risk of infecting a perfectly healthy lot of fish.