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Method ledger
How SnoutPicks scores aquarium uv sterilizers
Each product on the aquarium uv sterilizers scorecard gets one 0–100 score from the weighted formula below, computed only from published manufacturer specs and dated retailer records; we do not physically test products. The current table covers 20 products across 7 recorded spec fields, refreshed July 1, 2026.
- Scale
- 0-100
- Products
- 20
- Fields
- 7
- Updated
- July 1, 2026
The weights
| Dimension | Weight | Definition | Data source |
|---|---|---|---|
| Maximum Tank Size | 24% | Across the catalog, listed max tank goes from 50 to 2,500; higher numbers score better, while a missing entry stays neutral. | Max Tank |
| Flow Rate | 20% | Listed flow rate runs from 100 to 1,200 across the scored catalog; higher numbers score better, and unlisted values score neutral. | Flow Rate |
| Installation Format | 15% | The inline or internal scale runs from Internal to Inline Pond; entries nearer Inline Pond earn the most credit, while unlisted ones stay neutral. | Inline Or Internal |
| UV Wattage | 14% | Listed wattage runs from 7 W to 25 W across the scored catalog; higher numbers score better, and unlisted values score neutral. | Wattage |
| Freshwater/saltwater Support | 10% | This dimension checks whether fresh salt is listed; yes earns full credit, while no or missing earns zero. | Fresh Salt |
| Housing Material | 9% | Scoring housing material follows the PVC-through-Plastic ladder where the top rungs win the highest marks, and a missing entry holds neutral. | Housing Material |
| Lamp Type | 8% | This dimension reads lamp type straight from the listing — higher listed values score better, and an absent value stays neutral. | Lamp Type |
| Total | 100% | All dimensions above sum to the full score. | Published score total |
- #1 OASE Vitronic UV Clarifier 18W79/100Maximum Tank Size 24 pts, Flow Rate 18 pts, Installation Format 15 pts
- #2 Lifegard Aquatics Pro-MAX UV Sterilizer 25W71/100Flow Rate 20 pts, UV Wattage 14 pts, Installation Format 13 pts
- #3 Pentair Smart UV Sterilizer 18W56/100Installation Format 13 pts, Flow Rate 11 pts, Freshwater/saltwater Support 10 pts
- #4 Aqua Ultraviolet Advantage 15 Watt UV Sterilizer55/100Installation Format 13 pts, Flow Rate 11 pts, Freshwater/saltwater Support 10 pts
- #5 Coralife Turbo-Twist UV Sterilizer 6X53/100Installation Format 14 pts, Freshwater/saltwater Support 10 pts, UV Wattage 9 pts
| Product | Composite | Maximum Tank Size | Flow Rate | Installation Format | UV Wattage | Freshwater/saltwater Support | Housing Material | Lamp Type |
|---|---|---|---|---|---|---|---|---|
| OASE Vitronic UV Clarifier 18W | 79/100 | 24 points from grade 1 | 18.2 points from grade 0.91 | 15 points from grade 1 | 8.6 points from grade 0.61 | 0 points from grade 0 | 5.2 points from grade 0.58 | 8 points from grade 1 |
| Lifegard Aquatics Pro-MAX UV Sterilizer 25W | 71/100 | 1 points from grade 0.04 | 20 points from grade 1 | 12.9 points from grade 0.86 | 14 points from grade 1 | 10 points from grade 1 | 5 points from grade 0.55 | 8 points from grade 1 |
| Pentair Smart UV Sterilizer 18W | 56/100 | 1 points from grade 0.04 | 10.9 points from grade 0.55 | 12.9 points from grade 0.86 | 8.6 points from grade 0.61 | 10 points from grade 1 | 5 points from grade 0.55 | 8 points from grade 1 |
| Aqua Ultraviolet Advantage 15 Watt UV Sterilizer | 55/100 | 1.5 points from grade 0.06 | 10.9 points from grade 0.55 | 12.9 points from grade 0.86 | 6.2 points from grade 0.44 | 10 points from grade 1 | 5.2 points from grade 0.58 | 8 points from grade 1 |
| Coralife Turbo-Twist UV Sterilizer 6X | 53/100 | 2 points from grade 0.08 | 5.5 points from grade 0.27 | 13.5 points from grade 0.9 | 8.6 points from grade 0.61 | 10 points from grade 1 | 5.2 points from grade 0.58 | 8 points from grade 1 |
What the score bands mean
Score bands80+ strong60–79 solidBelow 60 limited fit
- 80+: strong marks on the heaviest dimensions with few weak lines in the listed specs.
- 60–79: competitive on most scored inputs, with at least one clearly weaker dimension.
- Below 60: trails this field on the inputs weighted most; the product cards list exactly where.
Source hierarchy
Published manufacturer specifications rank first, dated retailer records second; marketing claims without a checkable figure are excluded from scoring. Missing values never earn invented numbers; they are labeled “not listed - neutral 50” and take the neutral 50 grade the weight definitions describe.
- AA Aquarium
- Aqua Ultraviolet
- Coralife
- Lifegard Aquatics
- OASE
- JBJ Aquariums
- Aquarium Co-Op
- Fluval
- Scored product catalog
Retrieved · Built
- Fluval2026-07-02Source record
- AA Aquarium2026-07-01Source record
- Aqua Ultraviolet2026-07-01Source record
- Aquarium Co-Op2026-07-01Source record
- Coralife2026-07-01Source record
Update history
- Rankings rebuilt from the refreshed catalog: 20 aquarium uv sterilizers re-scored on 7 published spec fields, maximum tank size first.