Join Date: Mar 2014
Location: Philadelphia, PA
I would feed once a week before doing a water change. Shrimp are detritivores anyways so they don't need a lot of food and since you're going the filterless route, this will keep ammonium at bay. with only two juvies, you might have to crush or break up the pellets a little bit so they are easier to manage. I have CRS, cherries, and yellows all in a 1.5 gal pico tank, but I think .5 might be pushing it for space. You could set up a series of jars and vases that are species jars. That would be really cool!
I was thinking about doing something along those lines with the "Betta Falls" (http://www.amazon.com/Aqueon-1218-Kit-Betta-Falls/dp/B00INCRSFC) tank. I don't think it's appropriate for a betta, but I thought I could keep different varieties of shrimp in each partition of the thing.
Regardless, DO IT! Good luck!