Published: Apr 30, 2010 8:39 PM EDT

PORT CHARLOTTE, Fla. - "It was very quiet, very subdued," neighbor Sharon Poje said. "Whatever they were doing, they kept very well hidden."

Neighbors on Albacore Circle in Port Charlotte can't believe that inside a seemingly ordinary home, was a drug factory.

"Surprise! our street? We thought it was an empty house. We didn't know anyone lived there," neighbor Marie Guevara said.

Thursday night, the Charlotte County Sheriff's Narcotics Unit and the SWAT team rounded up 26.2 pounds of marijuana, including 85 mature marijuana plants and 90 smaller plants. High-powered grow lights and multiple air conditioning units can burn up a power bill, so the growers diverted power from FPL.

"You can see the meters," Bob Carpenter of the Charlotte Sheriff's Office said. "They are either not running if they have been totally severed or they leave some power to go to it and the meter is barely moving when there's three air conditioners outside."

In addition to having so much sophisticated equipment, the growers wanted to make sure they were doing it right. Detectives even confiscated an instructional tape on the "Cultivation of Marijuana."

Deputies arrested husband and wife, Giovanni and Yeiza Carralero, and Eduardo Cumana. This is the county's 2nd grow house raid this year.

"It's very scary anymore," Poje said. "You're just not sure who's your neighbor. They put up a good front but you wonder what's behind all this."?