Think Progressive.
Think Matala.
Matala's patented four-density filter media changed pond filtration for good — capturing heavy solids and polishing fine particles in a single progressive flow. Explore the full Matala system at Mystic Koi.
One flow. Four densities. Crystal-clear water.
Instead of clogging a single fine pad, Matala media steps water through progressively finer layers — coarse media traps the big stuff up front so finer media can polish without blocking. The result is more capacity, longer service intervals, and superb biological surface area. Click a layer to explore.
How much Matala media do you need?
A simple starting point using Matala's own rule of thumb — roughly 1 to 4 full sheets per 1,000 gallons depending on fish load. The heavier the fish load, the more media you need.
Guideline only — multi-chamber koi systems and very heavy loads may need more. We're happy to size it with you.
Complete Pond Kits
Everything matched in one box — filter or aeration system paired with the right pump, pre-filter, hose, UV and waterfall options. No guesswork on compatibility.
Shop All KitsUltraviolet Clarifiers
Compare all UV →UV that's actually comparable
The same wattage clears green water at one flow rate and sterilizes pathogens at another. Our comparison shows both — so you size for the job you actually have, across every brand we carry.
Open UV ComparisonShared core specs line up column-for-column; unique features show as highlights.
| Model | UV-C | Peak flow | Pond general | Koi pond |
|---|---|---|---|---|
| EzClear 16W | 16 W | 1,600 GPH | 3,000 gal | 1,600 gal |
| SS Spectrum 75W | 75 W | 5,700 GPH | 11,500 gal | ~5,750 gal |
| SS Spectrum 150W | 150 W | 6,500 GPH | 13,000 gal | ~6,500 gal |
| SS Spectrum 300W | 300 W | 17,000 GPH | 30,000 gal | ~15,000 gal |
Manufacturer ratings (Matala). Koi-pond rating ≈ half the general rating — koi need more UV dose per gallon. Cross-brand clarify-vs-sterilize view lives in the full comparison.