As its name indicates, the elephant ear sponge resembles an elephant ear and has an orange to red coloration on their body that gives it a distinctive look. The elephant ear sponge features an intricately designed compressed, massive body that looks splendid while moving in the water. The elephant ear sponge possesses a highly peaceful nature and can be housed with any inhabitant of the tank. The Elephant ear sponge grows up to 7 inches and should not be housed in a tank less than 50 gallons. Make sure to add plenty of rocks in the aquarium where it can hide or graze when required or stressed. Be cautious while keeping the elephant ear sponge in a reef tank as it may get nipped on by small crustaceans. It is best to keep it in a temperature range of 72-78 F, pH 8.1-8.4, and specific gravity 1.020-1.025. We recommend you to provide the elephant ear sponge with a diet that includes vitamin enriched frozen foods such as mysis shrimp and brine shrimp. Also, it should be fed with other meaty foods along with a high quality marine pellet food and flakes for its continued good health. The elephant ear sponge is reef safe. The Elephant ear sponge is difficult to care and maintain, thus it is only recommended for an experienced aquarist.