Id like to weigh in on variety too, i also think it is very important. I think it generally shows them the abundance of food around and makes it seem secure enough for mating and a larger population to survive. I literally feed them everything. Blanched baby spinach and zucchini, new life spectrum pellet form, hikari sinking wafers. I also leave the left over molts for them to recycle, and... sometimes a dead shrimp if i find one. To this point, i am able to still get berried shrimp even though some will point out that they can feel the pressure changes in winter to slow down or even stop all together.
My population has slowed down a lot on breeding since about mid Nov. but no surprise as I redistributed some to a tank/w BGA.
This left the established tank lacking for adults though not 100%. As the BGA is finally gone this new colony has doubled in numbers but
not as I would like them to. Long history includes a mass killing of them by accidentally lowering the amount of media in the bio-filter.
As I raise Daphnia/Moina cepopods etc in there I designed a filter that don't. Really it has no pad/screen/sponge/floss...just bio-media.
That is so everything small including fish fry/shrimp babies can pass through. But it will get semi clogged from plant particles and such
so after taking out the top layer of the media I got distracted and forgot to replace it. Lost about 60% of them in one day.
The rest took months to start back to reproducing. But now the "other" reason for mentioning that. Ever since then most of the new
ones come out tiger striped because of large amounts of the red being missing. I picked out only adults which were red to move to
the new tank but all the babies so far are tiger striped. One even almost has no red. We'll see. But this is the reason I am asking
about the food so I'll know it's not a factor. I'll just have to cull to get back to red. Also they shut down on breeding after the last
batch of babies so a new food might jump start them.