protopterus

4

How can you not be enchanted by this goofball? I don’t know how anyone could consider these fish boring.

For anyone who’s wondering, Linnaeus is a West African Lungfish (Protopterus annectens). These fish are ancient sarcopterygians whose closest relatives, besides the few other lungfish species, are coelacanths and tetrapods. Lungfish, being true to their name, possess a lung that is highly similar to the lung of a tetrapod which they use to draw oxygen from the air. In fact this species is an obligate air breather meaning they must draw oxygen from the air as their gills have lost the ability to extract oxygen from the water column in any significant amount. West African Lungfish can grow to 2 ½ - 3 feet long in aquaria and are an aggressive fish best kept alone.

3

Linnaeus just keeps getting fatter and not gaining much in length. He is such a funny fish, it’s hard to get pictures of him behaving naturally (napping, digging, etc) because if I’m in the room he’s just constantly begging for food.

For anyone who’s wondering, Linnaeus is a West African Lungfish (Protopterus annectens). These fish are ancient sarcopterygians whose closest relatives, besides the few other lungfish species, are coelacanths and tetrapods. Lungfish, being true to their name, possess a lung that is highly similar to the lung of a tetrapod which they use to draw oxygen from the air. In fact this species is an obligate air breather meaning they must draw oxygen from the air as their gills have lost the ability to extract oxygen from the water column in any significant amount. West African Lungfish can grow to 2 ½ - 3 feet long in aquaria and are an aggressive fish best kept alone.

2

Small reminder that this cute noodle is still looking for a home. Perls is a West African Lungfish(Protopterus annectens) who I rescued and he is looking for somewhere to spend the next 15+ years. These fish typically grow from 2.5-3ft in length with 2.5 and smaller being more common in captivity. WALs must also be housed alone due to their competitive nature and should not be housed with other fish or conspecifics.

An appropriate size for an adult WAL will be around 90-100gal but they are well paced growers and can be moved up in tank size as they mature. At Perls current size he would be fine in a 40gal Breeder for a decent while. Lungfish are very friendly and curious fish and are an absolute joy to own. If you’re interested in adopting Perls and can provide him with the home he needs don’t hesitate to send me a message.