### Instruction: Where is Ecsenius tessera commonly found?
### Input: Ecsenius tessera is a species of combtooth blenny in the genus Ecsenius. It is found in coral reefs in the western Pacific ocean, around Vanuatu. It can reach a maximum length of 4.5 centimetres. Blennies in this species feed primarily off of plants, including benthic algae and weeds.
### Response: Ecsenius tessera is commonly found in coral reefs in the western Pacific ocean, close to Vanuatu.