I found Wee Beys love of fish to be a fascinating character detail. I imagine when he was a kid someone took him to an aquarium and since then he's a legitimate
The Wire - Wee-Bey and Bunny Colvin discuss Namond's future. - YouTube
Namond & Wee Bey : r/TheWire
The Origin of the Wee-Bey GIF in 'The Wire' - The Ringer