- Vendor: Fluval
Fluval UVC In-Line Water Clarifier Up To 100 Gallons A203 Aquarium New Open Box
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What it is
An in-line UV clarifier you connect to your aquarium filter tubing. It uses ultraviolet light to kill:
- free-floating algae (green water)
- bacteria
- some parasites (limited)
Designed for tanks up to 100 gallons.
✅ Pros (why people buy it)
✔ Clears green water fast
- Usually noticeable improvement in 24–72 hours
- Great for algae blooms that make water look like pea soup
✔ Inline = clean setup
- No bulky device inside your tank
- Hides in your filtration line
✔ Improves water clarity overall
- Water looks “polished” and crystal clear
✔ Low maintenance
- Just replace UV bulb periodically (6–12 months typical)
Brand: Fluval
Tank Capacity: 100 gal.
Water Type: All Water Types
Model: A203
MPN: A203
Filter Location: External
Country of Origin: China
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Fluval UVC In-Line Water Clarifier Up To 100 Gallons A203 Aquarium New Open Box

