Blue Blubber (Catostylus mosaicus)

Overview

Blue blubbers (Catostylus mosaicas) are probably the most common jellyfish to be seen in the aquarium trade because they are sometimes imported with fish shipments from the Philippines. They are very energetic swimmers and require a lot of food or they will slowly shrink. They are found in an amazing range of colours including blue, brown, dark red, white and purple. This variation and their energy make them very popular pet jellyfish. The colour variation is only exist in the population in Philippines, and not in other areas such as Australia. The bred blue blubbers seem to have one colour which is light blue. Their sting is designed to catch small planktonic organisms so it isn’t vary powerful but it can still bring some people out in a rash or welts particularly if  you touch the jelly then touch sensitive parts of your body like your eyes.
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Species Information

  • they areHarmful to humans: No

  • Distribution: South East Asia

  • Maximum Bell Size: 10 cm (4 inches)

  • Life Span: 1 year

  • Feeding: Freshly hatched baby brine shrimp, coral reef food

  • Temperature: 20 – 28°C (68 – 82°F)

  • Salinity: 20-35ppt

  • Photosynthetic: No

  • Care level: Medium

Notes: Blue blubbers were thought to have symbiotic algae inside their body, however, recent research showed that either they do not have symbiotic algae or the contribution of photosynthesis of their symbiotic algae is negligible. They are often found in estuaries and coastal lagoons and are tolerate to lower saliity. They are very active swimmer and require a lot of food to maintain their energy consumption. The DO level needs to be kept high to support their active swimming in captivity.