Tetra Water Cleaner Gravel Siphon

The Tetra Water Cleaner (model AQ-78358) is a manual gravel siphon built for routine water changes. It is sized for aquariums from 2-55 gallons, and it arrives with the siphon tube, a priming bulb and a clip that holds the hose on the edge of a bucket.

How it works

Squeeze the priming bulb to start the flow, then push the wide tube down into the gravel. Water rushing up the tube lifts waste, uneaten food and loose detritus out of the substrate while heavier gravel drops back down. Moving the tube across the bottom section by section cleans the bed and drains old water at the same time, so two chores become one.

A steady water change routine

Tetra frames the product around a simple habit: replace about 30% of the water every 30 days, a job it says takes roughly 30 minutes. Many keepers prefer smaller changes more often, and the siphon handles that just as well. What matters most is consistency, since regular gravel cleaning keeps nitrate and organic waste from building up between changes.

Setup tips

• Clip the hose to the bucket before you start so it cannot jump out.
• Keep the bucket lower than the tank so gravity keeps the flow going.
• Work slowly near plant roots and lift the tube if gravel climbs too high.
• Match the temperature of new water before refilling.

Who it suits

This is a good first siphon for a beginner with a small or mid-size freshwater or saltwater tank. It has no motor, no batteries and very little to break. Keepers with larger tanks, or anyone who would rather not carry buckets, may prefer a powered option such as the UPETTOOLS electric gravel cleaner. For glass upkeep between water changes, pair it with the KIRECOO algae scraper.