10 Aquarium Trends That Are Growing Fast in 2026
Ten trends stand out on FishyHub in the US in 2026: coral frags, small reef fish, plakat bettas, giant plakats, cichlids and discus, freshwater shrimp, nano schooling fish, plecos and catfish, collector monster fish, and oddball pets. Each is growing in new listings, and several also show strong buyer interest or deep supply. Because the US marketplace is young, nearly every category is growing, so these ten are picked for how much activity they carry, not because others are shrinking.
Key Findings
- FishyHub data shows new listings growing across nearly every US aquarium category in 2026 compared with the previous year.
- FishyHub data shows LPS, SPS and polyp corals in the very high supply tier in the US, with coral listings still rising.
- FishyHub data shows halfmoon plakat bettas draw very high buyer interest in the US, with demand ahead of supply.
- FishyHub data shows US buyer interest in giant halfmoon plakat bettas clearly outpacing their limited listings.
- FishyHub data shows freshwater shrimp in the very high supply tier and the entry-level price tier in the US, with listings rising.
- FishyHub data shows discus, American cichlids and other cichlids in the very high supply tier in the US.
- FishyHub data shows "Other Animals", the category for pets beyond fish, shrimp and snails, is in the very high tier of FishyHub Feed video topics.
How These Trends Were Chosen
On the US side of FishyHub, momentum is rising in almost every category, because the marketplace is still building up its seller base. That makes "growing" true of nearly everything. To pick ten trends worth watching, we looked for groups that combine rising listings with very high or high supply, strong buyer interest, or a clear gap between demand and supply. They are numbered for reference only and are not in order of size or speed; each has its own section below.
The Ten Trends
- Coral frags for home reefs
- Small, colorful reef fish
- Halfmoon plakat bettas
- Giant halfmoon plakats
- Cichlids and discus
- Freshwater shrimp
- Nano schooling fish
- Plecos and catfish
- Collector monster fish
- Oddball pets beyond fish
Coral frags for home reefs
LPS, SPS and polyp corals are all in the very high supply tier, with mushroom and soft corals in the high tier. Frags are small and ship well, and they let a reef keeper grow a collection gradually. LPS corals sit in the collector tier, while SPS, polyps, mushrooms and soft corals are upper mid-range.
Small, colorful reef fish
Gobies, dartfish, dottybacks, dragonets and basslets are all growing. These are reef-safe fish that stay small, suit the nano and mid-sized reef tanks many US keepers now run, and add color without bullying tankmates.
Halfmoon plakat bettas
Halfmoon plakats draw very high interest from US shoppers, and demand is ahead of supply. Short fins make them hardier and more active than long-finned bettas, while selective breeding has given them show-quality color and form.
Giant halfmoon plakats
Giant plakats are the tightest market in this report: interest clearly outpaces the limited number of listings. They sit in the upper mid-range price tier, with a narrow spread between sellers, and they grow much larger than standard bettas.
Cichlids and discus
Discus, American cichlids and other cichlids are among the most heavily listed fish in the US. Apistogrammas, rams and angelfish are growing as well. Dwarf cichlids in particular suit planted tanks and are popular with keepers moving beyond community fish.
Freshwater shrimp
Shrimp have very high supply and sit in the entry-level price tier, and listings are rising. Neocaridina color lines are easy to breed and widely shipped, which makes them a common first purchase for planted-tank keepers.
Nano schooling fish
Tetras, rasboras, danios, hatchetfish and minnows are all growing in the entry-level tier. Small apartments and smaller tanks favor these fish, which look best in groups and fit tanks that a larger fish would outgrow.
Plecos and catfish
Plecos and catfish both have very high supply, and plecos show a very wide spread of prices between varieties. Corydoras, loaches and algae eaters are growing too. Bottom dwellers fill a part of the tank that other fish leave empty, and patterned plecos have a collector following of their own.
Collector monster fish
Arowana, datnoids and flowerhorn sit in the collector / premium price tier, and gar, bass, bichirs and knifefish are growing alongside them. These are long-lived fish for large tanks, often bought by experienced keepers who plan years ahead.
Oddball pets beyond fish
The "Other Animals" category is in the very high tier of FishyHub Feed video topics, and shoppers search for axolotls, isopods, frogs, hermit crabs and vampire crabs. Crabs, crayfish and snails are all growing on the US marketplace. Many keepers now combine an aquarium with a paludarium or terrarium, which brings these animals into the hobby.
What Is Driving Growth in the US
- Smaller tanks. Nano tanks and desktop reefs make small fish, shrimp and frags the natural purchase.
- Online buying of specific varieties. A local fish store carries common fish, while online sellers fill gaps for show bettas, particular corals and collector fish.
- Video and social discovery. Feed videos and searches show interest in unusual animals that few stores stock.
- Year-round heating and cooling. Most US homes need a heater for tropical fish in winter, and reef keepers manage temperature with heaters and, in hot regions, fans or chillers, so equipment and livestock purchases go together.
Shipping Across the US
FishyHub delivers through the Midwest & Central; East Coast & Northeast; South & Southeast; West Coast & Mountain West; and Alaska, Hawaii & territories zones. Overnight courier shipping in insulated boxes is the norm, and long distances, extreme weather and remote zones such as Alaska, Hawaii and the territories usually mean higher costs and more planning. Small livestock such as shrimp, nano fish and coral frags ships most easily, which helps explain why those trends are moving fast online.
Methodology
The trends above come from FishyHub's US marketplace data for the period from October 2024 to October 2026. We looked at active listings and how new listings changed against the previous year, listed prices and their spread between varieties, wishlists, likes and "my tank" saves from US users, search terms and FishyHub Feed videos. Every result is expressed as a tier or a direction of change, never as a figure.
The US marketplace is new and has no order history in this data, so growth here means listing activity and buyer interest, not sales. Buyer interest is reported for bettas only, and search terms combine the US and Singapore markets. FishyHub does not report state-by-state figures, and this page does not measure the overall size of the US hobby.
Frequently Asked Questions
What are the biggest aquarium trends in 2026?
On FishyHub in the US, the clearest trends include coral frags, small reef fish, plakat bettas, cichlids, freshwater shrimp, nano schooling fish and oddball pets such as axolotls and crabs.
Is reef keeping growing in the US?
FishyHub data shows coral and reef fish listings rising in the US, with LPS, SPS and polyp corals in the very high supply tier.
Which betta is trending in the US?
Halfmoon plakats draw very high interest on FishyHub in the US, and giant halfmoon plakats are a category where demand clearly outpaces supply.
Are nano tanks still popular?
Yes. Nano schooling fish, shrimp and small reef fish are all growing on FishyHub in the US, and they suit smaller tanks.
How to Cite This Page
Source: FishyHub, "10 Aquarium Trends That Are Growing Fast in 2026" (2026), https://fishyhub.com/us/blogs/blog-detail/10-aquarium-trends-that-are-growing-fast-in-2026
