Tanks & Stands8 min
Best 10 Gallon Fish Tanks and Kits (2026)
Aqueon's 10 gallon starter kit is the one we would buy because it includes a preset heater and thermometer. Here is the budget Tetra kit, a bare tank, and a stand that fits.
Topic
Small Tanks
6 guides.
Guides
Tanks & Stands7 min
Best Aquarium Starter Kits (2026): What Each Includes and Leaves Out
Aqueon's 10 gallon kit is the starter kit we would buy because it includes a heater and thermometer. Here is what every kit leaves out, and the best 5 and 20 gallon kits.
Heating & Cooling7 min
Best Betta Fish Heaters for 2.5 to 10 Gallon Tanks (2026)
Tetra's 50 W HT holds a 5 to 10 gallon betta tank at 78°F with no dial to get wrong. Here are the adjustable, nano and shatterproof alternatives, sized to your tank.
Tanks & Stands8 min
Best Betta Fish Tanks (2026): 5 Gallon Kits and What to Add
Marineland's Portrait 5 is the betta tank we would buy: 5 gallons, a hidden filter, a glass canopy and a hinged LED. Here are the alternatives and the heater each one still needs.
Filtration & Air8 min
Best Hang-On-Back Aquarium Filters (2026)
Fluval's AC30 (the new AquaClear) is the hang-on-back filter we would put on a 20 gallon tank. Here is how it stacks up against Seachem's Tidal, Marineland's Penguin, Tetra and Aqueon.
Heating & Cooling5 min
Betta Fish Water Temperature: The Right Range and How to Hold It
Keep a betta between 76 and 81°F, ideally around 78. Here is where that number comes from, why small tanks swing, and how to hold the range in winter and summer.