I hate to be jumping to conclusions, so please pardon my foot in mouth if that's the case. By the look of your tank, you are relatively new to this. I'd steer clear of crystal shrimp and go with cherries if you want to do inverts. They are much hardier IMO, and there would be much less out of pocket in the event something bad happened. You should sit back and look at your tank. Get a feel for the plants you have to work with and see what you can do about making some sort of cohesive flow. A tank with plants is cute, an aquascape is always amazing. A low tech tank does not have to be without the style of a higher dollar tank, you just need to be savvy about what looks good. Arrange with a focal point. Get the anubias and java moss out of the gravel and onto a piece of driftwood; and please please please get that sponge filter tucked behind that big stand in the back corner. Those three things will do worlds for taking you from a planted tank to an aquascape.