[Killietalk] How can I make a simple incubator for eggs?

[Jason <rusticitas at yahoo_com>]

Since my apartment is difficult to keep at an even temperature, and
especially now that it is getting cold out, I was wondering how I could
construct a simple incubator for the eggs from my N. rachovii, Simp.
reticulatus, Fp. fallax/kribianus, and (not too long, hopefully) Nem.
whitei.

So, what is a simple way to make an incubator for eggs? Is there a good
common temperature range for these types of fish eggs as well?

The materials I have on hand are a bunch of various-sized foam
containers such as those used to ship small fish, and an inexpensive
foam "cooler" from a convenience store. I have some smaller
aquarium-type heaters that have no temp control, like the little ~7W
type from WalMart, or the mini ones from Drs Foster Smith
(http://tinyurl.com/38v8y6).

Unfortunately I do not have a lot of leeway in time or extra eggs to
experiment with, and I'm unsure what the parameters should be as well.

Can anyone give me some tips and/or hints?

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