• Sized for the Velocity 1500 only — Bioscape uses a dedicated intake foam per filter size, so this part (BIS168) doesn't cross over with the 400/700 or 2000 inserts.
• Protects the impeller — mechanical pre-filtration stops larger debris reaching the moving parts, which is what keeps the rated 1,500 L/h flow honest over time.
• A five-minute fix — a filter that's slowed down is more often the intake foam than the pump.

This insert is sized for the Velocity 1500 specifically. If you're not sure which filter you've got, check the flow rating against this table:

• Suitable for: the intake slots on the Bioscape Velocity 1500 internal filter, freshwater or saltwater.
• Not suitable for: the Velocity 400/700 (BIS165, smaller) or the Velocity 2000 (BIS169, larger) — the wrong size leaves gaps around the intake.

At 1,500 L/h this filter pulls a lot of water through a small foam face, so on a busier tank it's worth checking every week or two rather than waiting for a scheduled water change. Rinse it in used tank water — tap water's chlorine kills off the bacteria living in it — and replace it once it won't spring back to an open texture.

Sold as a standard replacement part; any fault on arrival is covered under your consumer guarantee rights under Australian Consumer Law. Ships as a small parcel.

How do I know I've got the 1500 and not the 1000 or 2000?

Check the flow rate printed on the filter body — 1,500 L/h for this model, against 1,000 L/h or 2,000 L/h for its neighbours in the range.

Does this fit the Velocity 1000?

Bioscape hasn't published a matching intake foam part number for the 1000 in this listing family — check with us before ordering rather than guessing between the 700 and 1500 sizes.

How often should I replace it?

There's no fixed calendar interval published by Bioscape — rinse it regularly and replace it once it won't rinse back to an open texture or flow noticeably drops even after rinsing.