Bill Wann Net Worth 2026: The 20,000-Gallon Reef Tank Builder

No reputable financial outlet has published a net worth estimate for Bill Wann. The $21 million figure that appeared here before had no source and has been removed, together with a description of him as a designer at a firm called Wann & Associates that we could not confirm. The Bill Wann covered by the press lives in Bristol, Wisconsin, rebuilds analytical laboratory instruments for a living, and runs a second business, Aquarium Engineering, that sells custom aquarium filtration gear. He is best known for the 20,000-gallon reef tank he built in his own living room, which he told an interviewer cost around $500,000.

What is Bill Wann's Net Worth?

There is no published estimate from Forbes, Celebrity Net Worth or any comparable source as of September 2026. Both of his businesses are small private companies that do not publish accounts.

The few dollar figures on record all concern the aquarium:

• Build cost. A 2016 write-up by radio station WGRD, based on a video interview, said Wann estimated the tank's total cost at around $500,000.
• Running cost. The same report put the electricity bill for the tank's lights and equipment at $1,200.
• Livestock. FOX6 Milwaukee reported in 2013 that the tank held 100 to 150 fish, some worth $500 to $1,000 each.

Spending that much on a hobby shows he has had substantial income, but no source reports his earnings, property value or company revenue.

Bill Wann Yearly Earning, Monthly Income, and Salary

The old page listed $400,000 a year, $33,400 a month and $1,100 a day. Those figures had no source and have been removed. What is known is where his money comes from:

• Laboratory instrument work. FOX6 reported that he repairs and refurbishes sophisticated machines used in pharmaceutical and crime labs, working from equipment kept in his basement. Bulk Reef Supply's 2017 speaker profile says his background is in the pharmaceutical equipment industry, rebuilding and refurbishing analytical lab instruments.
• Aquarium Engineering. After years of being disappointed by commercial protein skimmers and calcium reactors, he built his own. As word of his tank spread, he turned that into a second business selling custom filtration systems, according to Bulk Reef Supply. FOX6 noted in 2013 that he had started a separate company to sell the large-tank equipment he designed.
• Consulting and custom builds. The Cayman Compass reported in 2018 that Wann advised the owners of what it called the world's second-largest private indoor saltwater reef aquarium, in the Cayman Islands, and built all of their equipment.

Read Article: Artemus Dolgin Net Worth

Early Life & Family

Little is public about Wann's background. FOX6 reported that he is a high school dropout, which contradicts the old page's claims that he studied design and holds a BA and MA. Those degree claims, and the story that he worked for several design firms before opening his own studio, had no source and have been removed.

Bill Wann Wife

No reputable outlet reports that Bill Wann is married. The previous version of this section actually described a different person and had no source; it has been removed. A 2013 FOX6 report mentioned that he shared his home with a girlfriend, who joked that planning a bigger tank was a little crazy. We do not name private partners here.

Education

According to FOX6 Milwaukee, Wann did not finish high school. He learned his trade through hands-on work: he told FOX6 that the people who operate the lab machines he rebuilds are mostly PhDs. The earlier claim that he completed a BA and an MA, and that he is a certified Project Management Professional, could not be verified and has been removed.

Professional Life

Wann's two lines of work feed each other. His instrument-rebuilding business supplies the engineering skills, and his home tank serves as a test bed for the filtration equipment Aquarium Engineering sells. A timeline from the coverage:

The 20,000-Gallon Reef Tank

The tank is the reason most people look him up. FOX6 described it as 24 feet long, 10 feet high and 10 feet from front to back, with a viewing panel of 2.5-inch-thick acrylic, holding more than 20,000 gallons. Wann designed and built the tank and its support systems himself, including the sumps, piping and filtration, and the house was built around it, according to Bulk Reef Supply and Popular Mechanics.

Maintenance is unusual: Wann and a friend put on scuba gear and climb inside to clean it, about once a week according to Popular Mechanics. Popular Mechanics called it the largest privately owned aquarium in the world, while FOX6 and Bulk Reef Supply used the narrower claim of largest in North America.

He has repeatedly talked about going bigger. In 2013 he told FOX6 he was planning a tank of 60,000 to 80,000 gallons; in 2016 he spoke of one four times the size of his current tank; and in 2018 the Cayman Compass said he was measuring his back yard for it. We found no report that the larger tank has been built.

Age, Height, Weight

The old page said Wann is 57 years old, 5 feet 7 inches tall and weighs 68 kg. None of those figures had a source and they have been removed. His age and physical details have not been reported by a reputable outlet.

See Also: Ari Rastegar Net Worth and Bill Tai Net Worth

Why There Is No Reliable Net Worth Figure

Wann runs two small private businesses that publish no revenue, and his home's value has not been reported. The only hard numbers are what he has spent on his tank, which show a well-funded hobby rather than a measurable fortune. The $21 million figure previously shown here, and the far larger numbers on some auto-generated sites, are not backed by any source.