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Budget expedition

Best tank upgrades under $20

You don't need to spend a lot to improve your setup. These inexpensive upgrades make tank maintenance easier and your animals happier.

BudgetUnder $20 each

Best forAquariums & terrariums

Biggest impactThermometer & cleaning tools

UpdatedDaily prices

Measure before you guess

A cheap digital thermometer (and a hygrometer for reptiles) is the most useful upgrade you can buy. Most problems start with temperatures or humidity being off without anyone noticing.

Make maintenance quicker

A gravel vacuum and an algae magnet turn a dreaded chore into a ten-minute job, which means you'll actually do it regularly.

Add enrichment

Live or silk plants, driftwood, a new hide or a hammock give fish and reptiles more places to explore and feel secure. Swap decor around occasionally to keep things interesting.

The kit list

Picks update every day based on ratings, sales and price.

Digital thermometer / hygrometer

Spot problems before they start.

See all thermostats & hygrometers →

Gravel vacuum or algae magnet

Faster, easier cleaning.

See all cleaning & maintenance →

Plants & driftwood

Instant enrichment and a natural look.

See all decor & plants →

A new hide

More security for shy reptiles.

See all hides & habitat decor →

Always check a species-specific care sheet, and your vet if you have concerns. Prices and availability can change.

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