Penn-Plax Cascade 500
#6 in Up to 75 galFull review
An inexpensive starter canister for tanks up to 30 gallons, with the basic conveniences but little published detail.
Amazon $129.99$129.99
The Penn-Plax Cascade 500 is the better aquarium canister filter overall, rated 2.6 to 2.4. The Penn-Plax Cascade 500 leads on features and value. The Zoo Med Nano 10 wins on turnover. The Zoo Med Nano 10 costs $75.35 less ($54.64 vs $129.99).
Prices were last checked November 9, 2026. Product prices and availability are accurate as of that date and are subject to change; the price and availability shown on Amazon or the retailer's site at the time of purchase apply. As an Amazon Associate we earn from qualifying purchases.
Zoo Med Nano 10
#8 in Up to 75 galFull review
A tiny canister for nano tanks up to 10 gallons, a tidy upgrade from a hang-on-back filter.
Amazon $54.64$54.64
Which should you buy?
- Choose the Penn-Plax Cascade 500 for features (priming button or self-priming, shutoff valves, adjustable flow vs none of the listed features) and value ($4.33 per rated gallon ($129.99, up to 30 gal) vs $5.46 per rated gallon ($54.64, up to 10 gal)).
- Choose the Zoo Med Nano 10 for turnover (80 gal/h for up to 10 gal, 8x per hour vs 115 gal/h for up to 30 gal, 3.8x per hour).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every up to 75 gal aquarium canister filter; a clear win is highlighted. How we rank explains each one.
| Factor weight | Penn-Plax Cascade 500 | Zoo Med Nano 10 |
|---|---|---|
| Overall rating | 2.6/5 | 2.4/5 |
| Value 25% | 18 $4.33 per rated gallon ($129.99, up to 30 gal) | 5 $5.46 per rated gallon ($54.64, up to 10 gal) |
| Media volume 20% | 0 media volume not published, scored as none | 0 media volume not published, scored as none |
| Turnover 20% | 67 115 gal/h for up to 30 gal, 3.8x per hour | 100 80 gal/h for up to 10 gal, 8x per hour |
| Efficiency 10% | 31 11 gal/h per watt (10.5 W) | 50 power draw not published (neutral score used) |
| Features 15% | 70 priming button or self-priming, shutoff valves, adjustable flow | 0 none of the listed features |
| Warranty 10% | 0 warranty not published, scored as none | 0 warranty not published, scored as none |
Specifications
| Penn-Plax Cascade 500 | Zoo Med Nano 10 | |
|---|---|---|
| Capacity | ||
| Rated aquarium | Up to 30 gal | 2-10 gal |
| Pump output | 115 gal/h | 80 gal/h |
| Turnover | 3.8x per hour | 8x per hour |
| Media | ||
| Media baskets | 2 | - |
| Features | ||
| Primer | Yes | - |
| Shutoff valves | Yes | - |
| Separate pre-filter | No | - |
| Adjustable flow | Yes | - |
| Built-in UV | No | No |
| Built-in heater | No | No |
| Water-change valve | No | No |
| Power and build | ||
| Power draw | 10.5 W | - |