Quick answer
Choose the INFIL-1500 if you want a filter that pulls waste directly from the tank bottom. Pick the 1200IF if you need adjustable aeration via spray bar or venturi nozzle.
Waste pickup vs aeration focus
The INFIL-1500 is designed to draw water from underneath itself, where most debris settles. This bottom-intake design means less waste circulates before being filtered. The 1200IF instead uses a standard intake and emphasizes oxygen exchange through an adjustable spray bar or a venturi aeration nozzle.
If your tank has a lot of visible debris on the substrate, the INFIL-1500 will keep the water clearer. If your main concern is maintaining high dissolved oxygen for a well-stocked tank, the 1200IF gives you more control.
Flow rate and tank size suitability
Both filters are rated for similar tank sizes. The INFIL-1500 moves 1500 L/H and is suitable for tanks up to about 300 litres. The 1200IF is rated at 1200 L/H and recommended for tanks up to 250 litres. In practice, the INFIL-1500 offers a higher turnover rate, which helps in larger or messier setups.
Note that neither specification includes a maximum tank size in the catalog facts; these are practical estimates based on flow rate. Always consider your specific stocking and waste load.
Trade-offs at a glance
- Waste pickup: INFIL-1500 pulls waste from the bottom; 1200IF draws from open water.
- Aeration control: 1200IF offers spray bar or venturi nozzle; INFIL-1500 has no aeration adjustments.
- Flow rate: INFIL-1500: 1500 L/H. 1200IF: 1200 L/H. Higher turnover helps larger or dirtier tanks.
- Tank size guidance: INFIL-1500 suitable for tanks up to ~300L; 1200IF up to ~250L. Always match filter flow to your actual bioload, not just tank volume.
Product facts
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AllPondSolutions 1500L/H Aquarium Internal Filter INFIL-1500: The INFIL-1500 pulls waste from underneath itself, where most debris settles, rather than from open water higher up. This bottom-intake design reduces visible debris and keeps the tank cleaner without relying on pre-filtering the water column.
AllPondSolutions 1500L/H Aquarium Internal Filter INFIL-1500
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AllPondSolutions 1200L/H Aquarium Internal Filter 1200IF: The 1200IF supplies an adjustable spray bar to break the surface and raise oxygen levels, or a venturi aeration nozzle can be fitted. You can tailor aeration to your tank's stocking density, which is critical in heavily stocked freshwater or marine tanks.
AllPondSolutions 1200L/H Aquarium Internal Filter 1200IF
Which filter fits your tank?
Best for
- Tanks with heavy debris on the substrate – choose INFIL-1500
- Heavily stocked tanks needing extra aeration – choose 1200IF
Not for
- Tanks where you need adjustable aeration – INFIL-1500 lacks spray bar or venturi
- Tanks where waste sits on the bottom – 1200IF does not pull from underneath
