Lysmata debelius is a species of cleaner shrimp indigenous to the Indo-Pacific. It is popular in the aquarium trade, where it is known as the fire shrimp, blood shrimp or scarlet cleaner shrimp. 
Lysmata debelius grows up to 3 centimetres (1.2 in) long, with males and functional hermaphrodites appearing similar. It has a red body, with conspicuous white antennae and white tips to the third to fifth pereiopods. There are white dots on the cephalothorax and legs; white dots on the abdomen distinguish L. splendida from L. debelius.