No from many infor i gathered on the net, snowflake has teeth specialise for crushing invert well maybe once in the aquarist hand they gone mad............. Hey i never loss a single fish.............. No eel teeth do not contain poison, its just that they feed on wide variety of meaty food thus when the reefer is accidentally bitten by the fish, he reefer should wash the wound quickly to prevent serious infection from the bacteria found in the eel teeth