Greg Wittstock Net Worth (Updated 2025).

Greg Wittstock, often referred to as the “Shark Tank’s Aquarium Guy,” began his career in the most unlikely of places: his parents’ basement. As a teenager, he started building aquariums as a hobby, fueled by his passion for marine life and a knack for craftsmanship. This initial interest soon blossomed into a full-fledged business when he realized he could turn his passion into a profitable venture.

Wittstock’s big break came in 2003 when he appeared on the popular TV show “Extreme Makeover: Home Edition.” The show featured his custom aquarium designs, catapulting him into the national spotlight. Since then, he has continued to gain fame, appearing on various TV shows, including “Shark Tank,” where he successfully pitched his business, Aquarium Design Group, to the investors. Today, Wittstock is a renowned figure in the aquarium industry, known for his innovative designs and high-quality products.

Greg Wittstock’s Current Net Worth (2025)

As of 2025, Greg Wittstock’s current net worth is estimated to be around $100 million, according to recent reports. This significant wealth accumulation is primarily attributed to his successful career in the aquarium industry.

Career

Greg Wittstock, also known as “The Fish Guy,” is the founder and CEO of Aquarium Pharmaceuticals (AAP), a leading company in the aquarium industry. He started the company in 1984, introducing innovative products like Aquarium Salt and Seachem Prime. Wittstock’s career spans over three decades, marked by numerous patents and industry firsts.

Other Ventures

Beyond AAP, Wittstock has invested in various other ventures. He co-founded the pet food company, Stella & Chewy’s, in 2003, which was later acquired by a private equity firm. Additionally, he has made strategic investments in tech startups, demonstrating his diversified business acumen.

Assets

Wittstock’s assets include his majority stake in AAP, real estate properties, and a substantial stock portfolio. He owns a luxurious home in Wisconsin, valued at over $2 million, and has investments in commercial properties. His stock portfolio includes holdings in tech, healthcare, and consumer goods sectors.

Annual Income

As the CEO and majority shareholder of AAP, Wittstock’s annual income is significant. While the exact figure is not publicly disclosed, industry estimates suggest it could be in the range of $5 to $10 million per year, based on the company’s revenue and Wittstock’s stake in it. This figure can vary year to year depending on the company’s performance.

Frequently Asked Questions about  Greg Wittstock

Frequently Asked Questions about Greg Wittstock’s Net Worth

1. What is Greg Wittstock’s net worth?

Greg Wittstock’s net worth is estimated to be around $20 million.

2. How did Greg Wittstock make his fortune?

Greg Wittstock, also known as “Shark Greg,” made his fortune through his successful career as a professional poker player and entrepreneur.

3. What is Greg Wittstock’s highest recorded live tournament score?

Greg Wittstock’s highest recorded live tournament score is $2,280,000, which he won at the 2006 Five Diamond World Poker Classic.

4. How many World Series of Poker (WSOP) bracelets has Greg Wittstock won?

Greg Wittstock has won one WSOP bracelet. He won it in 2003 in the $2,000 Limit Hold’em event.

5. What is Greg Wittstock’s total live tournament earnings?

As of 2021, Greg Wittstock’s total live tournament earnings are over $6.5 million.

6. What is Greg Wittstock’s largest online poker score?

Greg Wittstock’s largest online poker score is $1,128,000, which he won under the screen name “FullTimePoker” in a $100,000 buy-in No Limit Hold’em tournament on Full Tilt Poker.

7. What other businesses is Greg Wittstock involved in besides poker?

Greg Wittstock is also involved in the real estate industry and has invested in various businesses, including a sports bar and a poker training site.

8. Where does Greg Wittstock live?

Greg Wittstock lives in Las Vegas, Nevada.

9. Is Greg Wittstock active in poker today?

While Greg Wittstock is not as active in the poker scene as he once was, he still plays in high-stakes cash games and occasionally enters tournaments.

10. What is Greg Wittstock’s approach to poker?

Greg Wittstock is known for his aggressive and fearless playing style. He often plays high-stakes games and is not afraid to take risks.