It is possible to raise daphnia in a shrimp tank. They can eat more than just green algae water, they can eat yeast, egg yolk (hardboiled dry/crushed powdered), blended green peas, and more. The algae water is convenient since it "filters" the water (uses up ammonia, nitrites, nitrates), making it cleaner/healthier and is a constant food source that isn't polluting like lingering food would. I think golden pearls (smallest micron sizes), finely crushed up flake food might work. Anything small really, but daphnia cultures aren't all that stable, so clean, healthy water and feeding often is needed or else the culture might crash/die.
I haven't tried the yeast feeding, sounds like a nice method, but I am unsure how it affects the water quality.
By the way, I think daphnia like cooler temps (68-70*F).
But, what do you mean daphnia as absorbers/improving water quality? They won't really make water quality better, they are just another livestock that also adds bioload to a tank (all though not much). And by them eating the green algae water, they are actually removing the algae that is making the water healthier.
I haven't tried the yeast feeding, sounds like a nice method, but I am unsure how it affects the water quality.
By the way, I think daphnia like cooler temps (68-70*F).
But, what do you mean daphnia as absorbers/improving water quality? They won't really make water quality better, they are just another livestock that also adds bioload to a tank (all though not much). And by them eating the green algae water, they are actually removing the algae that is making the water healthier.
