Tetra EasyCrystal Filter Pack Carbon 250/300

Activated Carbon Replacement Filter Pack — for EasyCrystal 250 and FilterBox 300

3 pieces per pack — ideal after medication treatments

✅ Difficulty: Easy — Old cartridge out, new one in. No tools required.

The Tetra EasyCrystal Filterpack Carbon 250/300 is the activated carbon replacement filter material for the Tetra EasyCrystal Filter 250 and EasyCrystal FilterBox 300. The built-in activated carbon adsorbs yellow discoloration, unpleasant odors, and dissolved impurities for extra clear and fresh aquarium water. Ideal after medication treatments to quickly remove residues. Contents: 3 pieces.

🔧 Product specifications

🚚 Delivery & warranty

• Quick delivery from our store — ready to use immediately
• Shipping Tuesday or Friday → Read more about shipping
• Delivery with track & trace, usually within 1–2 working days
• Problem with your order? We'll solve it together. Contact us via our customer service.
• Free shipping for orders over €59,-

✂️ Usage tips

Replace every 4 weeks or immediately after a medication treatment. Remove the Carbon filter pack during medication treatments — activated carbon also adsorbs medications. Use the standard Filterpack 250/300 for daily use without activated carbon.

💡 Tip

Use the Carbon variant after medication treatments to quickly remove residues — then switch back to the standard Tetra EasyCrystal Filterpack 250/300 for daily use.

❓ Frequently asked questions

What is the difference from the standard Filterpack 250/300?
The Carbon variant contains extra activated carbon for chemical filtration. The standard Filterpack combines mechanical and biological filtration without activated carbon.

Do I need to remove the Carbon filter pack during medication treatment?
Yes — activated carbon also adsorbs medications and reduces the effectiveness of the treatment.

Have another question? Feel free to contact us — we are happy to help you make the right choice for your aquarium.