Velvet discussions

[shari2]

With the sudden rise in discussions about velvet and the fact that they are present in most bodies of water, both salt and freshwater and in low numbers do not cause a problem, I'm wondering if the onset of spring and warmer water may be having an effect.

I realize that aquaria are generally temperature controlled environments, but have any of those who've been dealing with these types (velvet specifically) of disease issues noticed any correlation between temp in the tank and the onset of issues? Anecdotally, it seems that some parasites rear their ugly heads on an almost seasonal basis.

There are usually a variety of reasons for fish to succumb to illness and often it is a concatenation of circumstances that create the problem:

a. Deteriorating water quality is a big one that can sneak up on a fishkeeper who gets busy with life. It can be a factor in lowering a fish's immunity, leaving them susceptible to issues that may have been present in a tank which they had previously been able to ward off.
b. Introducing new things into the tank without proper precautions brings all kinds of nasties we can't see.
c. Unknown contaminants in the water be they from a water company, or household items or even new tank decor, can cause sudden and drastic results.
d. Temperature fluctuation - up and downing too quickly or too continually - stresses fish and also leads to lowered immunity and possible problems.

In any given case there are likely a combination of issues that can create a disease/parasite outbreak to take hold in a tank.

Anyone who's noticed whether or not there may be a correlation to rising temps and their outbreaks?

[Mad Duff]

I have had a couple of outbreaks of velvet in my pond in the past and both have been at this time of the year, I have put it down to the fact that detritus has built up over the winter and the temperatures are rising. The last couple of years have been fine and I think its becuase I have started routine maintenance on the pond a little earlier.

[loachmom]

I'm really interested in this thread. I hope more people will post here.