As I said above -
You can read about Diana Walstad's experience here, it seems like promising stuff -
https://dianawalstad.files.wordpress.com/2017/05/mb__2017c.pdf
Really interesting article
@xZaiox that certainly prompts some questions.
Just curious, can I assume you are running your UV 24/7, without any undesirable impact and can I ask how long you’ve been running for?
My take is:
UV will obviously kill beneficial bacteria that is ‘screened’ as well as the nasties, but most BB is not free floating so colony impact would be minimal.
I guess you could argue the same for the Mico bacteria but, as it replicates so slowly by comparison, it would seem logical that the process could at least swing things in the BB’s favour to some extent.
Her experience certainly seems to indicate that the use of UV, slowed/reduced mortality rates, though of course, a single experience does not a conclusion make!
The article also links to
@MirandaB ‘s comment regarding stress, where particular situations may be risk points (introduction of new fish) and or underlying weakness increases susceptibility.
So, buying fish from reputable sources, always a good idea but also
would a decent period of quarantine allow fish who may have been shipped, dumped in an LFS tank and then raked back out and shipped to you, the opportunity to settle better into new water parameters, feeding routines etc, in a single group, prior to being added to a community tank for example….or is the stress inevitable.
Should we consider, to minimise stress, minimal introductions over longer periods rather than frequent new introductions as is often the case when stocking new tanks.
Should we bolster fish with treatments, as a matter of course, to protect them when they arrive with us so they are less likely to be attacked by other illness that may weaken them. If so, what? (Could be contentious)
Should we consider UV to minimise bacterial load (in an established tank) so that Mico bacteria are less able to ‘take hold’
If a fish is already chronically infected with MB, the chance of saving it is slim but maybe the spread of the disease is not entirely inevitable and/or can be slowed down in an already infected tank. If UV can assist with this, then maybe it’s paid for itself already!
Just my thoughts!