Lifespan of White Clouds?

They flourish in cooler waters. They need a high O2 level. They get about 1 1/2 times the size of neon tetras. The best I can do in my tank is room temp so around 72-74 degrees most days. I added extra filtration for water mov't and that really perks them up. I have had them live 5+ years at best.

I have 7-8 currently in a 29 gallon tank with cories and lots of plants. 20 may be pushing it a bit and you will find them less exciting to watch if you stuff too many into too small a tank. They are as fast a swimmer as danios.
 
I thought that White Clouds were cold water fish, or does temperature really not adversely affect them (other than a shorter lifespan) as long as they are adjusted properly? Does this go for all cold water fish?

There are tolerances that all fish can adapt too, within limits, but these vary from species to species. Oftentimes, these shift slightly from population to population as well as one adapts slightly for a minor change in thier micro-environment such as a higher pH, warmer water, etc.

The more to the edge of these tolerances that we place a fish in (more so in Wild Caught), the more stress is placed on their systems.

In almost all situations consistency is far more critical.

Another way of thinking of this is: I am from Canada. I wouldn't last 2 days in the dead of summer in Georgia working outside, but after 3 or 4 years I would acclimate myself, however, I will ALWAYS wish to be cold vs. hot. That's just me. In other words, we all adapt, and if allowed to adjust within our tolerance we will do just fine. But place me in the desert and I may live, but I won't be happy about it and my life will be a consant struggle to survive. I know I wont live out to old age in that kind of environment (unless I had AC!) ;)
 
We just lost 2 of our 8 white clouds recently, it looks like they couldn't get enough to eat (even though I was over feeding them a bit) and they starved to death - go figure :S
 
My boyfriend got a group of them for his goldfish tank almost 5 years ago, each one died off over the years and he now has only one left.
 
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