Planted Tank and Aquascaping Statistics 2026
By AquaFrond . 9 min read . Updated June 2026
The planted tank and aquascaping hobby sits inside the much larger world of freshwater fishkeeping, and that world is surprisingly well measured. This page collects more than 30 fully sourced statistics for 2026: how many people keep aquariums, how dominant freshwater is, how large the aquarium and aquatic-plant markets are, and how the gear that defines aquascaping, CO2 and lighting, is growing. Every figure names its source and year. The data draws on the American Pet Products Association, Ornamental Fish International, the University of Florida, and major market researchers.
The short answer
Ornamental Fish International estimates 100 million aquarium hobbyists worldwide buying about 1.5 billion fish a year, and the American Pet Products Association reports 8 percent of US households keep fish. Freshwater dominates: the University of Florida puts it at 90 to 96 percent of trade volume. Fortune Business Insights values the global aquarium market at 4.0 billion dollars in 2025.
This guide contains affiliate links. AquaFrond may earn a commission at no cost to you.
How many people keep aquariums
Fishkeeping is one of the largest pet hobbies in the world. Ornamental Fish International estimates 100 million aquarium hobbyists worldwide, buying about 1.5 billion ornamental fish a year across more than 120 countries. In the United States, the American Pet Products Association reports that 8 percent of households keep fish, roughly one in every twelve or thirteen homes.
The planted-tank hobby lives on the freshwater side, which dominates the trade. The University of Florida IFAS Extension reports that 90 to 96 percent of ornamental fish traded by volume are freshwater, and Straits Research found tropical freshwater the largest market segment at about 52.1 percent in 2024. Among US generations, the American Pet Products Association noted freshwater fish ownership rose 17 percent year over year for Gen X households.
The market behind the hobby
Fortune Business Insights valued the global aquarium market at 4.0 billion dollars in 2025, projecting 7.0 billion by 2034. The aquatic-plant slice specifically, the heart of aquascaping, was sized at 1.37 billion dollars for 2025 by The Business Research Company, growing toward 2.05 billion by 2030. The broader ornamental fish market was put at 6.91 billion dollars for 2025 by Straits Research.
Equipment is its own large market. Research and Markets sized the aquarium equipment market at 5.21 billion dollars for 2025, heading to 7.76 billion by 2032, while the University of Florida noted about 2,000 ornamental fish species are traded each year.
Growth and the aquascaping trend
Aquascaping-adjacent categories are among the fastest-growing in the hobby. The aquatic-plant market is modeled at roughly 8.4 to 8.7 percent annual growth by The Business Research Company, and the aquarium fish market at about 8.5 percent by Cognitive Market Research, both ahead of the roughly 6.5 percent overall aquarium market. The US pet industry overall reached 158 billion dollars in 2025, providing the tailwind.
The gear that defines a planted tank
Two pieces of gear separate a planted tank from a plain aquarium: CO2 and lighting. The aquarium CO2 reactor market was sized at 246.8 million dollars for 2024 by Growth Market Reports, growing to 461.2 million by 2033, with planted aquariums the largest and fastest-growing segment. Business Research Insights found 63 percent of aquarists now prefer nutrient-rich plant substrates.
A reliable CO2 system is the upgrade that most changes plant growth, which is why a dependable regulator like the CO2Art Pro-SE Dual Stage CO2 Regulator is a common first serious purchase for aquascapers.
CO2Art Pro-SE Dual Stage CO2 Regulator
The planted tank community's benchmark dual-stage regulator with integrated solenoid, precision needle valve, and bubble counter, preventing end-of-tank dump across the cylinder's lifespan.
$150-$180 mid
Where the fish come from
Encouragingly for the hobby, most freshwater fish are now farmed rather than wild-caught. Cognitive Market Research reports that more than 90 percent of traded freshwater ornamental fish are captive bred. Worldwide, the University of Florida values ornamental fish and invertebrate imports at about 278 million dollars, spread across the more than 120 countries Ornamental Fish International tracks.
Sources
Ornamental Fish International (OFI), industry overview, 2024.
American Pet Products Association (APPA), Fish and Reptile Report and US pet industry figures, 2024 and 2025.
University of Florida IFAS Extension, ornamental fish trade, 2023.
Straits Research, Ornamental Fish Market; Cognitive Market Research, Aquarium Fish Market.
Fortune Business Insights, Aquarium Market, 2025. The Business Research Company, Aquarium Plant Market, 2025. Research and Markets, Aquarium Equipment Market, 2025.
Growth Market Reports, Aquarium CO2 Reactor Market, 2024; Business Research Insights, aquarium substrate and LED lighting markets, 2025 and 2026.
Keep reading
Related roundups
FAQ
Frequently asked questions
How many people keep aquariums?+
Ornamental Fish International estimates 100 million aquarium hobbyists worldwide, buying about 1.5 billion ornamental fish a year. In the US, the American Pet Products Association reports 8 percent of households keep fish, roughly one in twelve or thirteen homes.
Is the aquarium hobby mostly freshwater or saltwater?+
Overwhelmingly freshwater. The University of Florida IFAS Extension reports 90 to 96 percent of ornamental fish traded by volume are freshwater, and Straits Research found tropical freshwater the single largest market segment at about 52.1 percent in 2024.
How big is the aquatic plant market?+
The Business Research Company sized the global aquarium plant market at 1.37 billion dollars for 2025, projecting 2.05 billion by 2030 at roughly 8.4 percent annual growth, faster than the broader 4.0 billion dollar aquarium market.
How big is the planted-tank CO2 market?+
Growth Market Reports sized the aquarium CO2 reactor market at 246.8 million dollars for 2024, growing to 461.2 million by 2033 at about 7.1 percent a year, with planted aquariums named the largest and fastest-growing segment.
Are aquarium fish wild-caught or farmed?+
Most freshwater fish are farmed. Cognitive Market Research reports more than 90 percent of traded freshwater ornamental fish are captive bred, a major shift toward sustainability in the hobby, while marine species remain more reliant on wild collection.
Is the aquascaping hobby growing?+
Yes. The aquatic-plant and aquarium-fish markets are both modeled growing around 8 to 8.7 percent a year, ahead of the roughly 6.5 percent overall aquarium market, and nutrient-rich plant substrates are now preferred by 63 percent of aquarists per Business Research Insights.