Aqua Medic Carbolit

Aqua Medic Carbolit is a high-efficiency activated carbon filter media in pellet form used in aquarium filtration to clean and polish water in both freshwater and marine systems.

Key specs

• Type: Activated carbon (pellet media)
• Form: Granules / pellets (1.5 mm or 4 mm versions)
• Use: Freshwater & saltwater aquariums
• Function: Chemical filtration (adsorption)
• Purpose: Removes color, toxins, and impurities from water

What it does

• Makes aquarium water crystal clear
• Removes yellowing compounds (tannins, phenols)
• Eliminates medication residues after treatment
• Reduces organic pollutants and discoloration
• Improves overall water clarity and quality

How to use

• Rinse thoroughly with RO or aquarium water before use
• Place in:
• Filter bag inside a canister filter, or
• Sump chamber with good flow, or
• Dedicated media reactor (best performance)
• Ensure water passes through the media, not around it
• Replace regularly for best results

Recommended dosage

• General guideline:
• ~100–250 ml per 100 liters of water (depending on water condition and load)
• Heavy use (after medication or yellow water):
• Up to 250–500 ml per 100 liters temporarily
• Replacement cycle:
• Every 3–6 weeks (or when water clarity decreases)
• Always adjust based on tank bioload and water tests

Important notes

• Can lower water nutrients quickly → don’t overuse in reef tanks
• Must be rinsed to remove carbon dust before use
• Works best with moderate water flow (not stagnant, not too fast)
• Not a permanent filter — it is a consumable media
• In reef tanks, avoid sudden large changes (can stress corals)

Who it’s for

• Reef and freshwater aquariums needing clear water
• Tanks recovering from medication treatment
• Systems with yellow or cloudy water
• Hobbyists wanting polished, crystal-clear water quality

Not ideal for

• Tanks with very low nutrients (ULNS reef systems) if overused
• Users who don’t rinse or replace regularly
• Systems relying only on biological filtration