START­ING WITH CLUE 5 GUESS THE FISH US­ING AS FEW CLUES AS POS­SI­BLE

Practical Fishkeeping (UK) - - Letters -

5

Wild spec­i­mens of this fish es­caped from cap­tiv­ity in North Amer­ica in the 1960s and have been a feral prob­lem there ever since. It’s a mas­ter­ful es­cape artist – the chal­lenge is to keep it tanked.

4

Adapted gills al­low this fish to breathe at­mo­spheric air. As long as the gills re­main wet, it can sur­vive for up to 31 hours out of wa­ter. It can even breathe through its skin.

3

It has a ven­omous sting lo­cated in its dor­sal and pec­toral spines. While small spec­i­mens and Asian types have a bee-like sting, some African va­ri­eties have been known to hos­pi­talise peo­ple.

2

The fish grows to 30-45cm max­i­mum in aquaria. Be­cause it grows so quickly and feeds so ravenously, it’s be­come a prime choice for aqua­cul­ture and the ma­jor­ity are farmed for food.

1

In the wild it will of­ten walk from one river to an­other, us­ing its pec­toral fins as an­chors as the body twists from side to side. It’s an un­usual cat­fish, be­ing en­er­getic even in day­light hours.

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