Jacob Greenberg, Banner Correspondent PROVINCETOWN — It takes two to three years for an oyster seed to mature into a full-grown, edible oyster — about the same amount of time it can take a new business to show a profit. Aquaculturist Michael Chute hasn’t yet figured out a way to get his product from tide to table any faster, but he did get a leg up on the business side of things when his company SilvaChuters, based in Provincetown, won $1,000 in a local “pitch contest.” Think "Shark Tank"...but on a fishbowl scale. “One of the opportunities that we see is aqua tourism,” Chute told the five judges in his two-minute pitch. “We’re right now a small one- and two-acre grant out on the tidal flats west of the breakwater."