For large aquariums: Reduces nitrate & organic waste naturally – maintains stable biological balance without chemicals. Improves clarity & freshness: Removes debris & odours – supports healthy oxygen levels and biofiltration. Long-term biological stability: Strengthens natural bacteria activity – ideal after maintenance or water changes. Easy dosing: Start 25 ml / 100 L, weeks 2-4 15 ml / 100 L, then 7.5 ml / 100 L every 14 days – no refrigeration needed. ARKA quality: Premium biotechnology for safe and natural water balance – trusted by professionals.
All merchants
- Amazon Marketplace
- Nixon
- Oceans Alive
- Cheaper-Online
- Ecatering
- Tuff Pets
- Stattics
- Piercing Mania
- Farmeci
- Phones Direct
- Ninja
- Known Nutrition
- MBT
- Mizuno
- Sacla
- Radwell UK
- The Personal Barber
- John Greed
- Simply LED
- The Home Brew Shop
- Gemondo Jewellery
- Menkind
- My Mini Maker
- Mifica Products
- Kettler Outdoor Furniture
- mojoglasses
- My Jewellery
- Evelyn Gold
- Milhaus
- Fitness Options