Laurenie, my CHERRY shrimp are in a 5 gal hex that I originally bought for a betta sorority. In the photo of Jax, you can see it in front of him (he likes to drink from it). I keep forgetting if they're cherry red shrimp or red cherry shrimp!!!! They're little & red & yes, I am trying to breed them! They are all (about 2 dozen) really small so it will probably be awhile. I'm also using it as a holding tank for new plants. I have it in my front window that gets lots of sun (hence the algae).
My trouble with that tank, too, is I've attached a sponge pre-filter to the intake (for obvious reasons) BUT it isn't allowing enough water through to run strong enough (for my satisfaction). I may build a DIY sponge filter using a pump, but I have to clean the yard, vacuum the floors, do some laundry, etc. etc.!!! My aquatic pets' living quarters are cleaner than mine!