Every page on the site
94 roundups, comparisons and guides across six hubs, plus the pages that set out how we work and what we refuse to claim.
The way in
Tanks & Kits
How big does the tank actually need to be?
- How many gallons does a betta need?
- The best betta fish tanks
- The best nano tanks
- The best small tanks for beginners
- Fluval Spec V review
- Fluval Spec V vs Flex 9
- Betta tank setup, in the order that works
- Betta bowls, and what actually happens in one
- Fluval Spec 16 review
- The best 10-gallon nano tanks
- The best betta tank with a filter and heater
- The cheapest betta tank setup that is still correct
- The best 3-gallon tanks
- Glass versus acrylic aquarium
- Fluval Spec V vs Marineland Portrait
- The aquarium lid, and which one fits
Heaters & Temperature
What wattage does this tank actually need?
- What size heater your tank actually needs
- The best nano tank heaters
- The best heater for a 5-gallon betta tank
- The best heater for a 3-gallon tank
- The best heater for a 10-gallon tank
- Do bettas need a heater?
- Betta water temperature, and what happens at each end
- Preset versus adjustable heaters
- Aquarium heater safety, in a tank with no margin
- The best heater for a 20-gallon tank
- Is an aquarium heater controller worth it?
- The best aquarium thermometer
- Cooling a nano tank: the fan, and when a chiller
Filters & Flow
How much flow is too much for a betta?
- Do betta fish need a filter?
- The best nano tank filters
- The best sponge filters for betta tanks
- The best filter for a 5-gallon betta tank
- Sponge filter versus hang-on-back
- How to baffle a betta filter
- The best filter for a 10-gallon tank
- Nano tank filter media, and what each layer is for
- The best filter for a 20-gallon tank
- AquaClear 20 review
- Is a sponge filter enough for a betta?
- The best filter for a 3-gallon tank
- Do betta fish need an air pump?
- Aquarium filter making noise
- The best battery powered air pump
- The pre-filter sponge, sized to your intake
Stocking & Tank Mates
What can actually live with a betta?
- Betta tank mates, threshold first
- The best betta tank mates
- The best nano fish for a small tank
- Betta tank mates for a 5-gallon
- Betta tank mates for a 10-gallon
- Can betta fish live with shrimp?
- Can betta fish live with snails?
- Betta versus guppy
- Betta versus goldfish
- The nano shrimp tank, built properly
- Betta tank mates for a 20-gallon
- Amano versus cherry shrimp
- Betta and neon tetras
- The best shrimp food for a nano tank
Plants, Substrate & Light
What grows in a small tank without CO2?
- The best plants for a betta tank
- The best substrate for a betta tank
- The best nano tank lights
- Aquasoil versus inert substrate
- Light requirements for a planted nano tank
- How to aquascape a 5-gallon tank
- The best nano tank plants
- Low light versus CO2 in a nano tank
- Fluval Stratum versus Bio Stratum
- The best aquarium plant fertilizer for a nano tank
- The best floating plants for a betta tank
- The best aquarium light timer
- Black beard algae
- The betta hammock, honestly
- Fake plants in a betta tank
Care & Maintenance
What does keeping this thing alive actually involve?
- Betta fish care
- How to cycle a betta tank
- The best betta food
- Betta tank cleaning schedule
- How long do betta fish live?
- Pellets versus flakes versus frozen
- The nano tank maintenance kit
- Do betta fish need light?
- Seachem Prime versus Stability
- Seachem Prime review
- The best aquarium water test kit
- How to lower nitrates in a nano tank
- Cloudy aquarium water, by color
- Betta at the top of the tank
- The best automatic fish feeder
- How often to feed a betta, and how much
- How to lower pH in an aquarium
- Sick betta symptoms, by what you can see
- Betta fin rot, and what actually treats it
- Betta swim bladder, bloating and buoyancy