Chemical filtration uses activated carbon, zeolite, and phosphate removers to adsorb dissolved impurities that mechanical and biological filtration cannot address. Play It Koi carries chemical media for removing discoloration, odors, medications (after treatment), excess phosphates, and ammonia spikes.
When to Use Chemical Filtration
Activated carbon is useful for removing residual medications after treatment, clearing tannins (brown water from leaves), and polishing water clarity. Zeolite absorbs ammonia directly — excellent for emergency ammonia spikes or new ponds that have not cycled. Phosphate removers starve algae of a key nutrient. Pro tip: chemical media has a limited lifespan — replace activated carbon every 4–6 weeks and zeolite when ammonia readings begin rising. Zeolite can be recharged by soaking in salt water.
Play It Koi offers free shipping on orders over $99. Questions? Contact our pond experts for chemical filtration guidance.
