Freshwater shrimp are very easy to keep and can be kept in smaller aquariums without worry. However there are some essential things you need to keep them happy and healthy.
1. The filer intake must have a cover on it.
This is necessary so small shrimp or baby shrimp don’t get sucked up in your filter. I like to use filter sponge block for this. Normally you wont find a hollowed out block of it but you can by any shape block and cut it out.
2. You must have plants!
This is a must in my opinion! These animals thrive by eating bacteria and other organisms like algae off of your plants. Often times when you add new plants to a preexisting tank the shrimp will all swarm to it looking for food. Plants also provide shelter for the shrimp as well as their young. An excellent plant for this is any kind of moss.
3. Provide a lot of surface area for the shrimp to crawl on.
Usually plants help with this but having some driftwood or rocks in your tank will help you get the most out of your shrimp. They also will allow them to do more than just move along the bottom of your tank. So for example you could add a piece of drift wood that sticks up in the middle of your tank that way the shrimp can comfortably crawl along it as well.
If you follow these simple steps you should enjoy keeping shrimp without worry. Also your shrimp should be able to live, breed, and stay very healthy for a long time.