FERRIX-03 High-Capacity GFO | Phosphate, Silicate & Heavy Metal Remover

BTA Filtration FERRIX03 Phosphate · Silicate · Metals — High-capacity granular ferric hydroxide built for aquarium and aquaculture filtration. Low-dust 0.2–2.0 mm granules with ~300 m²/g reactive surface and 60% iron content. ~300 m²/g surface 60% iron 12 targets 500 g $39.75 1 kg $65.60 new arrival Phosphate · Silicate · Heavy Metals aquarium & aquaculture grade ~300 m²/g Reactive Surface ✓ Phosphate · Silicate · Metals ✓ 60% Iron Content ✓ ~300 m²/g Surface ✓ Low-Dust 0.2–2.0 mm ✓ Reef · Freshwater · RAS · Ponds FERRIX-03 is a high-capacity granular ferric hydroxide (GFO) adsorbent — built to strip phosphate, silicate and heavy metals from aquarium and aquaculture water. With ~300 m²/g of reactive surface area and 60% iron content, FERRIX-03 delivers more adsorption power per gram than standard aquarium GFO — longer media life between change-outs and fewer nuisance outbreaks. the 03 difference Why the 03? The 03 Difference Three Targets. One Media. The 03 represents the three contaminant classes FERRIX strips from your water — each one a known driver of livestock stress, nuisance algae and system degradation. Phosphate fuels algae and suppresses coral calcification. Silicate drives brown diatom films. Heavy metals accumulate in fish tissue and invertebrates over time. FERRIX-03 locks all three onto its granule surface — permanently — until you swap the media out. ~300 m²/g BET surface 60% Iron content 12 Proven targets Low Dust granules 🌊 01 · Phosphate The Algae Fuel The number one driver of nuisance algae, cyanobacteria blooms and suppressed coral calcification. FERRIX-03 locks phosphate onto the media surface — permanently — until you change the media out. 💎 02 · Silicate The Diatom Fuel Silicate drives the brown diatom films that plague reef and freshwater systems alike — and it's on FERRIX-03's proven removal list, not hidden in the fine print like most budget GFO. 🛡️ 03 · Heavy Metals The Silent Accumulators Tap water top-ups, salt mixes and fish food all drip-feed metals into your system. FERRIX-03 strips arsenic, copper, lead, zinc and more before they accumulate in livestock tissue. full target list What FERRIX-03 Removes Every contaminant below is adsorbed by FERRIX-03 as water passes over the granules. No guesswork — just clean water. Phosphate (PO₄³⁻) Silicate (SiO₄) Arsenic (As) Copper (Cu) Lead (Pb) Zinc (Zn) Molybdenum (Mo) Antimony (Sb) Vanadium (V) Uranium (U) Hydrogen Sulfide (H₂S) Hydrogen Peroxide (H₂O₂) ~300 m²/g reactive surface — physisorption and chemisorption across the full granule 60% iron content — more active sites per gram than standard aquarium GFO 0.2–2.0 mm low-dust granule — rinses clear fast, won't cloud your system Professional-grade purity — compatible with reef, freshwater, RAS and pond filtration built for every system Where FERRIX-03 Works 🐠 Reef & Marine Strip phosphate and silicate to starve nuisance algae, protect coralline encrustation, and support hard coral calcification. Low-dust granules rinse clean — no clouding your display. 🌿 Freshwater & Planted Kills diatom films and heavy metal accumulation without stripping beneficial trace elements that plants actually need. Ideal for tap-water top-ups where copper and lead creep in. 🏭 Aquaculture & RAS High-capacity adsorption for recirculating systems where phosphate and metals accumulate across thousands of litres. Longer media life = less downtime = lower operating cost. 💧 Ponds & Outdoor Tackle phosphate spikes from leaf litter, fish waste and runoff. FERRIX-03 binds phosphate permanently on the granule surface — it can't leach back into your water. how to use How FERRIX-03 Works 01 🚿 Rinse First Place FERRIX-03 in a fine media bag or filter sock and rinse under tap water until it runs clear. The low-dust granule cleans fast — usually under a minute. 02 ⚙️ Fluidised Reactor or Media Bag Run it in a phosphate reactor for maximum contact, or drop the media bag into a high-flow area of your sump. More flow = more contact = more removal. 03 📊 Test & Monitor Check phosphate levels with a reliable Hanna Checker or equivalent. When PO₄ stops dropping, media is exhausted — swap it out. 04 🔁 Change & Repeat Fresh media in, old media out. Don't try to regenerate it — once GFO is saturated, it's done. Buy once, cry once. faqs FERRIX-03 FAQs Q. What does FERRIX-03 actually remove? Phosphate, silicate, arsenic, copper, lead, zinc, molybdenum, antimony, vanadium, uranium, hydrogen sulfide and hydrogen peroxide — twelve proven targets across three contaminant classes. Q. How is FERRIX-03 different from standard aquarium GFO? Surface area and iron content. Most aquarium GFO is 50–150 m²/g with lower iron loading. FERRIX-03 delivers ~300 m²/g and 60% iron — roughly double the active sites per gram. More sites = longer media life = fewer change-outs. Q. Is it safe for fish, corals and invertebrates? Yes. Granular ferric hydroxide is the go-to phosphate adsorbent in reef aquaria and commercial aquaculture worldwide. FERRIX-03 is inert, pH-neutral and safe for all livestock when used as directed. The low-dust granule rinses clean fast and won't leach iron into your system. Q. How much should I use? Start with roughly 50 g per 100 litres for phosphate control. Heavily stocked systems or high-PO₄ starting levels may need more. Test after 48 hours and adjust from there — data is king. Q. Can I reuse or regenerate it? No. Once FERRIX-03 is saturated, it's spent. Trying to regenerate ferric hydroxide media can actually release bound phosphate back into your water. Swap it for fresh media — buy once, cry once. Not sure which BTA media is right for your system? Tell us your tank volume, livestock and current PO₄ reading — we'll recommend the right dose and filtration setup. Talk to BTA Trade & Wholesale Aquarium shops, aquaculture facilities and maintenance crews — FERRIX-03 is available in bulk volumes at trade pricing. Hit the button below or email sales@btaqua.com.au for a quote. Request Trade Pricing Ask a Technical Question Data is king. 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