Aquarium buying guides for every tank
Spec- and use-case-based picks to help you kit out a healthy freshwater or planted tank — the best filter for a 200L setup, the right heater for a nano, lighting for a planted tank, a first CO2 kit and more. Start with a tank, dial in filtration and heating, then fine-tune lighting and CO2.
💨 Air pumps The best aquarium air pumps for 2026 🐟 Beginner tanks The best aquariums for beginners in 2026 🧽 Water changes The best aquarium gravel cleaners & water changers for 2026 🔥 Heaters The best aquarium heaters for 2026 🪨 Planted substrate The best substrates for a planted tank in 2026 🌱 Fertilizers The best aquarium plant fertilizers for 2026 🧪 Test kits The best aquarium water test kits for 2026 🫧 Beginner CO2 kits The best beginner CO2 kits for a first planted tank in 2026 🫧 CO2 systems The best CO2 systems for planted tanks in 2026 🌀 External / canister The best external (canister) aquarium filters for 2026 🌱 Low-tech dosing The best fertilisers for a low-tech planted tank in 2026 🍤 Fish food The best fish food for 2026 🪝 Hang-on-back The best hang-on-back aquarium filters for 2026 🌱 Planted lighting The best lights for a planted tank in 2026 💧 All-in-one The best all-in-one liquid aquarium fertilisers for 2026 🧫 Cycling essentials The best bacteria starters & water conditioners for 2026 ✨ Algae cleaning The best aquarium algae cleaners for 2026 🏖️ Sand & gravel The best aquarium sand & gravel for 2026 💸 Budget lighting The best budget aquarium lights for 2026 🫧 CO2 accessories The best CO2 diffusers & drop checkers for 2026 🐋 Large tanks 200 L+ The best filters for a large (200 L+) aquarium in 2026 🧩 Internal filters The best internal aquarium filters for 2026 🌿 Liquid carbon The best liquid carbon supplements for planted tanks in 2026 🍃 Nano tanks The best nano aquariums for 2026 📏 60 L class The best 60 litre aquariums for 2026 🌿 Aquascaping The best aquascaping tanks for 2026 💨 CO2 diffusers The best CO2 diffusers and atomizers for planted tanks in 2026 🍤 Nano tanks The best filters for a nano tank in 2026 🌱 Planted-tank filtration The best filters for a planted tank in 2026 🐟 Flake food The best tropical fish flakes for 2026 🇩🇪 Eheim The best Eheim filters for 2026 🍥 Pellet food The best fish pellets for 2026 🔇 Quiet air pumps The best quiet aquarium air pumps for 2026 🦐 Shrimp tanks The best shrimp tanks for 2026 🐟 Betta tanks The best betta tanks for 2026 🐟 Big-tank air pumps The best air pumps for large or multiple tanks in 2026 🧲 Magnet cleaner The best aquarium magnet glass cleaners for 2026 📦 Complete kits The best complete aquarium kits for 2026 🌡️ Nano heaters The best nano aquarium heaters for 2026 🪒 Algae scraper The best aquarium algae scrapers for 2026 💧 Water conditioners The best aquarium water conditioners and dechlorinators for 2026 🏠 Large tanks The best large aquariums for 2026 🛡️ Shatter-resistant The best shatter-resistant aquarium heaters for 2026 🐠 5 gal · 19 L The best 5 gallon (19 L) aquariums for 2026 🧪 Test strips The best aquarium test strips for a quick weekly check in 2026 🐋 Large tanks The best heaters for a large aquarium in 2026 🪴 Aqua soils The best active aqua soils for a planted tank in 2026 💰 Budget pick The best budget aquariums and starter kits for 2026 💡 Nano lights The best nano aquarium lights for 2026 🌀 Fluval range The best Fluval filters for 2026 🌿 High-tech The best high-tech aquascaping lights for 2026 🦐 Shrimp substrates The best substrates for a shrimp tank in 2026 🌅 24/7 auto mode The best 24/7 auto-mode aquarium lights for 2026 🪨 Aquarium gravel The best aquarium gravel for 2026 🌡️ 20 gal · 75 L The best heaters for a 20 gallon (75 L) tank in 2026
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