I have an 8 gallon nano tank, heavily planted, perfect water conditions, about 6 months old. I have around 15 cherry red shrimp and 3 Danio Erythromicron. The Danios are extremely timid and are always in the part of the tank that is farthest from me when I am in the room. Even when I feed them they don't come out. One died yesterday and I am wondering if the food drops to the bottom, gets eaten by the shrimp, and they are not getting any. Do you guys have any suggestions or ideas?