Robert M. Weintraub, 76, of Gwynedd Valley, a tropical-fish expert whose marketing ability made it fun to shop for the colorful creatures at his aquarium supercenter, died of pneumonia Monday, March 3, at Chestnut Hill Hospital.
Mr. Weintraub and his brother, Paul, started out by working at Martin's Aquarium, the store their parents founded in Jenkintown.
But Mr. Weintraub's greatest success came as the designer and co-owner of Captain Nemo's Aquarium in East Norriton Township. Captain Nemo's, in Northtown Plaza on Germantown Pike near DeKalb Pike, was known by fish hobbyists and aquarium experts as a premier aquarium superstore.
Its main attraction was a circular, 11-foot-high, 5,000-gallon fish tank containing two Indonesian black-tipped reef sharks. At 7 p.m. each Tuesday, children and their parents would come to see the sharks being fed. The children were given shark-shaped soft pretzels to eat during the performance.