Crystal-Clear Water Starts from the “Core” – An In-Depth Look at AC Filter Cotton A+B

Update time: 25-09-08 Views: 20

1. Cloudy tank? The problem may hide at the “first gate”

Every aquarist knows the pain: no matter how expensive your light or how lush your plants are, once the water turns milky and fine debris floats around, the whole scape collapses.

These ≥10 μm particles—fish waste, food residue, algal dust—are the real culprits. They slip through common sponges, clog bio-media like traffic jams, crash the nitrifying system, spike ammonia and nitrite, and leave fish gasping.

2. AC Filter Cotton A+B: turning “mechanical filtration” into a science

After 18 months and 1 200 flow tests, AC R&D married “precision” with “coarse” filtration in one single pad—Filter Cotton A+B.

- 100 % virgin natural fibre, zero recycled content

No optical brighteners, no chemical “white flakes” leaching into the water; safe for fry and sensitive Caridina shrimp.

- Hydrophobic surface modification

A lotus-leaf effect keeps intercepted debris from sticking. Rinse 3-5 times, still >85 % permeability; cleaning intervals doubled.

- 1+1 dual-layer gradient

Top 30 ppi coarse fibre: disperses flow, traps large particles, relieves stress on the lower layer.

Bottom 50 ppi fine fibre: sieves anything ≥10 μm, delivering visibly polished water within 30 min.

Test data: in a 60×30×36 cm planted tank, turbidity dropped from 28 NTU to 3 NTU in half an hour.

- DIY cut, lightweight yet tough

Trim to any shape with household scissors—no fray, no lint. One square metre weighs 18 % less than conventional pads, saving freight for overseas buyers.

3. Three proven setups

Hang-on-back “sandwich”

Lay AC Honeycomb Mat AC610M35-P on the bottom for support, place 1 cm A+B coarse side up in the middle, top with bio-rings—mechanical + biological in one go.

Sump pre-filter “guardian”

Cut A+B into 5×20 cm strips, slide into the first drawer of your drip tray. A 10-second rinse every week keeps the fine pads behind it untouched for a year.

Breeding tank “fry-safe mat”

Fry can be sucked into coarse pores or injured by rough strands. A+B’s fine side is soft and lint-free, 60 ppi flow, zero trapping; survival rate up 15 %.