Turn Your Reef Tank into a Zero-Phosphate Paradise – AC Marine Bio Block Makes Algae Blooms History
Update time: 25-09-16 Views: 0
“Phosphate just hit 0.1 ppm and hair algae is smothering my corals!” – a nightmare pop-up every reef-keeper knows. Behind bleached SPS tips and green-coated rocks hides the same culprit: invisible phosphate. After three years in the AC AquaClean lab we rewrote the rule-book and baked “ultra-low P” into the ceramic itself. Meet the Marine Bio Block.
1. Why “zero-phosphate” is non-negotiable in a reef tank
Coral skeletons are CaCO₃. When PO₄³⁻ climbs above 0.03 ppm calcification drops >30 % and algae out-compete corals for light and flow. Ordinary bio-media boast surface area but quietly leach phosphate or aluminum, becoming hidden nutrient factories. AC Marine Bio Block contains only 0.0274 % phosphate raw material – two orders of magnitude lower than the industry average – cutting the algae food supply at the source.
2. Open-pore architecture = “high-speed lane” + “parking garage”
SEM photos reveal a 3-D honeycomb with 0.5–2 mm interconnected pores and >80 % porosity.
• Flow rates up to 3× those of ordinary sponge without clogging or channeling.
• 800 m²/m³ specific surface – fold a football field into 10 cm³ – offering tiered condos for nitrifiers, denitrifiers and anammox bacteria.
• Initial bio-film in 2 h, full nitrification cycle in 7 d, NH₄⁺→NO₂⁻→NO₃⁻ efficiency +42 %.
3. Heavy-metal ND (Not Detected) – truly reef-safe
SGS RoHS 10-item screen: all ND. Aluminum leaching 0.005 ppm, far below the 0.02 ppm WHO limit for drinking water. The α-Al₂O₃ skeleton is inert, acid/alkali and salt-fog resistant; no dust after a year in seawater, safe for SPS, LPS, seahorses and sensitive fish.
4. Real-world snapshot – 120 L nano reef
System: 120 L AIO, DC-2000 pump
Stock: 1 Golden Rhinopias, 3 Canary SPS frags, 5 soft corals
Media: 2 pcs AC Marine Bio Block (10 × 10 × 4.5 cm) + mini filter bag
Log:
Day 0 – PO₄³⁻ 0.08 ppm, NO₃⁻ 15 ppm
Day 7 – PO₄³⁻ 0.02 ppm, NO₃⁻ 5 ppm
Day 30 – PO₄³⁻ 0.00 ppm (Hanna ULR), NO₃⁻ 1 ppm, new coral tips fluorescent green, zero algae film.
5. Quick-use guide
1. Rinse with RO or tap water – no boiling needed.
2. 1 block per 20 L; double for heavy bio-load.
3. Combine with a skimmer and GFO for a true “zero-P” system.
4. Lightly brush every 6–12 months, drop back in – service life ≥3 years.
6. FAQ
Q: Can I use it in freshwater?
A: Yes, but the zero-phosphate edge is wasted; use our Fresh line for better value.
Q: Will it “steal” bacteria from old media?
No. It only adds premium “real estate”; colonies distribute throughout the whole system and cycle time shortens.
Order the Special for Marine Bio Block today at [www.acaqua.com] – global direct shipping, 30-day no-hassle returns. Let your corals spend their energy growing, not fighting algae.
