Keep in mind the size ratios of your BGK..
A friend of mine picked up a large BGK and put it in her oddball tank with some Spiny Eels.. at night it would try to eat the spiny eels because it thought they were worms. (BGK feed on worms in the wild) .. their electrical senses make it hard for them to differentiate food sometimes.
Might have the same problem with a huge BGK and a small polypterus..
A friend of mine picked up a large BGK and put it in her oddball tank with some Spiny Eels.. at night it would try to eat the spiny eels because it thought they were worms. (BGK feed on worms in the wild) .. their electrical senses make it hard for them to differentiate food sometimes.
Might have the same problem with a huge BGK and a small polypterus..