Shrimp? General Advice On Choice & Care

The easiest shrimp to start with is cherry shrimp, Neocaridina heterpoda. These now come in a variety of colours. The wild shrimps are brown but coloured forms have been bred by selective breeding. Red cherries were the first, and are the most common in shops and the cheapest. But there are also blue, yellow, chocolate colours and the very bright sakura shrimps. All the same species. Don't mix colours or they'll interbreed and you'll end up with brown shrimps.

As for how to keep them, the simplest is for me to give you some link.

Link 1
Link 2 - click on a type to see details.

There are types of shrimp to avoid.
Fan feeders are difficult to feed in an aquarium. Often called bamboo shrimps. Their 'hands' are like fans which filter tiny particles from the water.
Long arm shrimp, or macrobrachia. Often sold as ghost shrimp, these are not ghost shrimp. They have extra long arms and have been known to take down fish.