Water-change tools · Gravity siphon
Aqueon Siphon Vacuum Gravel Cleaner, Medium 5 in
Rated for a 20 gal tank
Consider: Sized by Aqueon for 5 to 20 gallon tanks. The water goes into a bucket, so a big water change means several trips.
Aquarium water change tools: compare the choices
9 water-change tools, drawn at their published size on your tank and checked against the maker’s rating.
9 models
Fit marked for 20 gallon long (example)
Water-change tools · Gravity siphon
Aqueon Siphon Vacuum Gravel Cleaner, Medium 9 in
Rated for a 20 gal tank
Consider: Sized by Aqueon for 15 to 35 gallon tanks. The water goes into a bucket, so a big water change means several trips.
Water-change tools · Gravity siphon
Aqueon Siphon Vacuum Gravel Cleaner, Large 10 in with bulb
Rated for a 20 gal tank
Consider: Sized by Aqueon for 15 to 55 gallon tanks. The bulb starts the flow without pumping the tube; the water still goes into a bucket.
Water-change tools · Gravity siphon
Aquarium Co-Op Siphon Gravel Vac Mini
- Dimensions
- length: 6.25 in; width: 0.9375 in
Consider: It has no squeeze bulb or flow guard. Choose another design if you need those features, and keep the intake away from small animals while controlling the flow.
Water-change tools · Intake prefilter sponge
Aquarium Co-Op Pre-Filter Sponge, Medium
- Dimensions
- 3 × 2.5 × 2.5 in (L × W × H)
Consider: Intake fit is model-specific. Use the published compatibility chart and measure the intake; inspect foam condition instead of treating it as a guaranteed barrier for tiny animals.
Water-change tools · Gravity siphon
Aqueon Siphon Vacuum Gravel Cleaner, Large 16 in
Listed from 40 gal; no maximum published
Consider: Sized by Aqueon for 40 gallon and bigger tanks. The water goes into a bucket, so a big water change means several trips.
Water-change tools · Faucet water changer
Aqueon Aquarium Water Changer, 25 ft
Consider: No buckets to carry, but it needs a sink faucet within 25 ft of the tank that takes its adapter.
Water-change tools · Faucet water changer
Aqueon Aquarium Water Changer, 50 ft
Consider: No buckets to carry, but it needs a sink faucet within 50 ft of the tank that takes its adapter.
Water-change tools · Gravity siphon
Aqueon Siphon Vacuum Gravel Cleaner, Mini 5 in
Rated 1–5 gal, not 20 gal
Consider: Sized by Aqueon for 1 to 5 gallon tanks. The water goes into a bucket, so a big water change means several trips.
No models match these filters.
Clear the search or choose another tank size. The size filter only shows filters and heaters that their maker rates for that size.
The size filter and the fit marks use each maker’s tank-size rating for filters and heaters and the fixture span for lights. Drawings use the makers’ published sizes; positions are approximate. Where a maker doesn’t publish a rating, we don’t guess one; each model page says what is missing.
Before choosing water-change tools
Work backward from the water route: tank reach, hose length, container or drain access and control of the returning water. Check which fittings come in the box before you count on a kit doing the whole job.
Check these against your tank in the equipment planner. Replaced and renamed models.
Every size by maker: API · Aquarium Co-Op · Aqueon · EHEIM · Fluval · Marineland · Seachem · Tetra · hygger