Endler Guppys are very hardy and undemanding in the aquarium and the usual freshwater tropical set-up & parameters will allow them to do well. They seem to especially thrive in planted tanks, as this more closely mimics their natural environment. Endlers prefer harder & warmer water (26-27°c), but this is not a strict requirement. Keep in mind, the warmer the water, the faster they grow; however, this may also shorten their lifespan.
Because of their small size (even as adults) they make an excellent choice for small desktop aquariums, but do enjoy a roomy environment when available to them. Also, Endlers are an especially peaceful fish so get along extremely well with other peaceful fish in a community set up.