Brojek Finds🔎 All finds

Home › Finds › Biochemical

The 24 best-selling biochemical on AliExpress

We picked 24 biochemical from AliExpress with real orders and good reviews. Prices go from $1.15 to $22.79, the average rating is 4.8 stars and the most popular one has 7.2k orders. Every product opens on AliExpress, where you pay with buyer protection.

Updated: 2026-11

  1. 1New Aquarium Filter for Aquarium Fish Tank Air Pump Skimmer Biochemical Sponge Filter Aqua-56%New Aquarium Filter for Aquarium Fish Tank Air Pump Skimmer Biochemical Sponge Filter Aquarium Bio Filters$4.51 $10.23★ 4.9 · 7.2k soldView on AliExpress →
  2. 2Aquarium Accessories Biochemical Cotton Filter Fish Tank Pond Foam Sponge Filter Black 15 -66%Aquarium Accessories Biochemical Cotton Filter Fish Tank Pond Foam Sponge Filter Black 15 25 35 50PPI Used$1.15 $3.39★ 4.8 · 7k soldView on AliExpress →
  3. 33cm Thick Aquarium Filter Super Thick Biochemical Filter Cotton Sponge for Aquarium Fish T-54%3cm Thick Aquarium Filter Super Thick Biochemical Filter Cotton Sponge for Aquarium Fish Tank Bio Cotton Foam$3.56 $7.66★ 4.9 · 5.6k soldView on AliExpress →
  4. 4New Aquarium Filter for Aquarium Fish Tank Air Pump Skimmer Biochemical Sponge Filter Aqua-70%New Aquarium Filter for Aquarium Fish Tank Air Pump Skimmer Biochemical Sponge Filter Aquarium Bio Filters$4.30 $14.39★ 4.7 · 5.1k soldView on AliExpress →
  5. 5Aquarium Filter Super Thick Biochemical Filter Cotton Sponge for Aquarium Fish Tank Bio Co-53%Aquarium Filter Super Thick Biochemical Filter Cotton Sponge for Aquarium Fish Tank Bio Cotton Foam Skimmer$4.09 $8.63★ 4.9 · 4.9k soldView on AliExpress →
  6. 69Layers Aquarium Fish Tank Filter Sponge No Glue Foam Biochemical Cotton Aquarium Filtrati-56%9Layers Aquarium Fish Tank Filter Sponge No Glue Foam Biochemical Cotton Aquarium Filtration Accessories Bio$3.66 $8.32★ 4.9 · 4.4k soldView on AliExpress →
  7. 73cm Thick Aquarium Filter Super Thick Biochemical Filter Cotton Sponge for Aquarium Fish T-72%3cm Thick Aquarium Filter Super Thick Biochemical Filter Cotton Sponge for Aquarium Fish Tank Bio Cotton Foam$3.66 $12.93★ 4.7 · 4k soldView on AliExpress →
  8. 8Aquarium Filter Sponge For Fish Tank Air Pump Skimmer Biochemical Sponge Filter Aquarium B-40%Aquarium Filter Sponge For Fish Tank Air Pump Skimmer Biochemical Sponge Filter Aquarium Bio Filter Filtro$1.15 $1.93★ 4.8 · 3.2k soldView on AliExpress →
  9. 9Aquarium Accessories Biochemical Cotton Filter Practical Fish Tank Pond Foam Sponge Filter-68%Aquarium Accessories Biochemical Cotton Filter Practical Fish Tank Pond Foam Sponge Filter Black Multiple$1.15 $3.54★ 4.7 · 2.6k soldView on AliExpress →
  10. 10Multi Sizes Black Filtration Foam Aquarium Fish Tank Biochemical Filter Sponge Pad Skimmer-74%Multi Sizes Black Filtration Foam Aquarium Fish Tank Biochemical Filter Sponge Pad Skimmer Long Use Time$4.09 $15.61★ 4.7 · 2.3k soldView on AliExpress →
  11. 11Aquarium Filter for Aquarium Fish Tank Air Pump Skimmer Biochemical Sponge Filter Aquarium-54%Aquarium Filter for Aquarium Fish Tank Air Pump Skimmer Biochemical Sponge Filter Aquarium Bio Filter Filtro$4.09 $8.85★ 4.7 · 2.1k soldView on AliExpress →
  12. 12Aquarium Filter for Aquarium Fish Tank Air Pump Skimmer Biochemical Sponge Filter Aquarium-57%Aquarium Filter for Aquarium Fish Tank Air Pump Skimmer Biochemical Sponge Filter Aquarium Bio Filter Filtro$3.88 $9.05★ 4.9 · 2.1k soldView on AliExpress →
  13. 133 Sizes Fish Tank Air Pump Skimmer Aquarium Fish Filter Accessories Practical Aquarium Bio-60%3 Sizes Fish Tank Air Pump Skimmer Aquarium Fish Filter Accessories Practical Aquarium Biochemical Sponge$2.40 $5.99★ 4.9 · 1.7k soldView on AliExpress →
  14. 143 Sizes Fish Tank Air Pump Skimmer Aquarium Fish Filter Accessories Practical Aquarium Bio-75%3 Sizes Fish Tank Air Pump Skimmer Aquarium Fish Filter Accessories Practical Aquarium Biochemical Sponge$2.20 $8.68★ 4.8 · 1.7k soldView on AliExpress →
  15. 15100g 250g 500g Nano Aquarium Bio Balls Biochemical Ball Filter Media for Aquarium Filter A-73%100g 250g 500g Nano Aquarium Bio Balls Biochemical Ball Filter Media for Aquarium Filter Accessories for Fish$4.51 $16.45★ 4.8 · 1.6k soldView on AliExpress →
  16. 16Black Aquarium Filter for Aquarium Fish Tank Air Pump Skimmer Biochemical Sponge Filter Aq-65%Black Aquarium Filter for Aquarium Fish Tank Air Pump Skimmer Biochemical Sponge Filter Aquarium Bio Filters$1.15 $3.28★ 4.7 · 1.2k soldView on AliExpress →
  17. 1721 Types Aquarium Bio Balls Biochemical Ball Filter Media for Aquarium Filter Accessories -57%21 Types Aquarium Bio Balls Biochemical Ball Filter Media for Aquarium Filter Accessories for Fish Tank Hot$8.50 $19.89★ 4.9 · 1.1k soldView on AliExpress →
  18. 185 Sizes Aquarium Fish Tank Air Pump Bio Sponge Filter&Replaceable Biochemical Cotton Filtr-53%5 Sizes Aquarium Fish Tank Air Pump Bio Sponge Filter&Replaceable Biochemical Cotton Filtration Oxygenation$1.15 $2.45★ 4.6 · 710 soldView on AliExpress →
  19. 19Mini Aquarium Sponge Filter Fish Tank Shrimp Pond Air Pump Biochemical Sponge Filter Aquar-70%Mini Aquarium Sponge Filter Fish Tank Shrimp Pond Air Pump Biochemical Sponge Filter Aquarium Filtration$1.15 $3.78★ 4.6 · 386 soldView on AliExpress →
  20. 20Aquarium Filter With Water Pump For Fish Tank Air Pump Skimmer Biochemical Sponge Filter A-69%Aquarium Filter With Water Pump For Fish Tank Air Pump Skimmer Biochemical Sponge Filter Aquarium Bio Filters$22.79 $72.84★ 4.7 · 383 soldView on AliExpress →
  21. 21New Big Bio Sponge Filter for Aquarium Fish Tank Shrimp Pond Air Pump Biochemical Filtrati-67%New Big Bio Sponge Filter for Aquarium Fish Tank Shrimp Pond Air Pump Biochemical Filtration Noiseless Foam aq$14.74 $45.04★ 5.0 · 50 soldView on AliExpress →
  22. 22Black Spong Filter for Aquarium Fish Tank Air Pump Skimmer Biochemical Sponge Filter Aquar-65%Black Spong Filter for Aquarium Fish Tank Air Pump Skimmer Biochemical Sponge Filter Aquarium Bio Filters Filt$6.49 $18.29★ 4.5 · 47 soldView on AliExpress →
  23. 23Aquarium Filter Sponge for Fish Tank Air Pump Skimmer Biochemical Sponge Filter Aquarium BAquarium Filter Sponge for Fish Tank Air Pump Skimmer Biochemical Sponge Filter Aquarium Bio Filter Filtro Aqu$2.60★ 4.6 · 34 soldView on AliExpress →
  24. 24New Bio Sponge Filter for Aquarium Fish Tank Shrimp Pond Air Pump Biochemical Filtration N-56%New Bio Sponge Filter for Aquarium Fish Tank Shrimp Pond Air Pump Biochemical Filtration Noiseless Foam aquari$6.66 $15.18★ 4.7 · 21 soldView on AliExpress →

Quick picks

Most popularNew Aquarium Filter for Aquarium Fish Tank Air Pump Skimmer Biochemical Sponge F$4.51 · ★ 4.9 · 7.2k soldBest ratedNew Big Bio Sponge Filter for Aquarium Fish Tank Shrimp Pond Air Pump Biochemica$14.74 · ★ 5.0 · 50 soldCheapest well ratedAquarium Accessories Biochemical Cotton Filter Fish Tank Pond Foam Sponge Filter$1.15 · ★ 4.8 · 7k soldBiggest discount3 Sizes Fish Tank Air Pump Skimmer Aquarium Fish Filter Accessories Practical Aq$2.20 · ★ 4.8 · 1.7k sold

How much to pay

Tip: read the latest buyer photos on AliExpress and check the size or model before you order. Products with many orders and a rating of 4.7 or more are usually the safest choice.

Questions

What is the best-selling biochemical?

The most popular one is "New Aquarium Filter for Aquarium Fish Tank Air Pump Skimmer Biochemical Sponge Filter Aquarium Bio Filters", with 7.2k orders.

How much does a biochemical cost?

In this list prices go from $1.15 to $22.79; half of them cost less than $4.09.

Which biochemical has the best reviews?

"New Big Bio Sponge Filter for Aquarium Fish Tank Shrimp Pond Air Pump Biochemical Filtration Noiseless Foam aq" has an average of 5.0 stars with many orders.

Are there discounts?

Yes. On average these products are 55% below their original price on AliExpress. Prices change often.

Prices and ratings come from AliExpress and can change. We may earn a commission when you buy through our links, at no extra cost to you.