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JBL ClearMec plus

Code: 6239500
  • £7.50
  • RRP £12.84
Item in Stock   |   Usually dispatched within 24 hours

Removal of nitrite, nitrate and phosphate from the aquarium: filter medium for the use inside aquarium filters

  • To use: material packed ready for use in two filter bags. Insert in the filter at the penultimate position, in front of the last fine filter material
  • Nutrients are bound to the filter material and no longer released. When the levels of the problem substances rise again: reapply JBL Clearmec plus
  • 600 ml = 450 g for 150 to 300 litres of fresh water
  • Package contents: 2 ready-to-use bags with filter material

Nitrite (NO2): Forms the second stage of nitrogen decomposition. Is generated by bacteria from ammonium (NH4) and ammonia (NH3) and further decomposed to nitrate (NO3). As nitrite reduces the transport of oxygen in the blood of the fish, it is usually fatal from 0.4 mg/l. The filter material JBL Clearmec plus binds nitrite to the material. It does not need to be biologically degraded. Nitrate: Is generated from nitrite by bacteria and is broken down by bacteria to nitrogen gas in the absence of oxygen (in the filter). This gas then escapes from the aquarium water (denitrification). Nitrate is not toxic to fish, but it promotes algae growth. The filter material JBL Clearmec plus binds nitrate to the material, which does not need to be biologically degraded. Phosphate: Phosphate is created by dead algae & plant residues as well as from fish excrements and uneaten fish food. It is not harmful for fish, but it promotes the growth of algae. Partial water changes, removing plant remains and the right amount of fish and food keep phosphate levels low. JBL Clearmec plus binds phosphates to the filter material.

JBL Specification
Gross Weight 502 g g
Net Weight 450 g g
Packaging Dimensions (L X H X W) 60/225/125 mm
For Animal Species Terrapins, Tropical Terrapins, Turtles, koi, Tetras, Barbels, Danionins, Livebearers, Cichlids - Small “Predators”, Cichlids - Algae Eaters, Cichlids - Large “Predators”, Labyrinth Fish, Goldfish, Veiltails, Catfish, Loaches, Blowfish, Spiny eels & Reedfish, Butterflyfish & Panchaxes, Killifish & Rainbowfish, Juvenile Fish, Silver arowana, Axolotl, Shrimps and dwarf crayfish, Discus fish, Crustaceans, Guppy, fighting fish, Flowerhorn cichlids, shrimps, cichlids: angelfish, discus, snails, molluscs, Axolotl (cool waters), newts (cool waters), sterlets
For Animal Size For all animal sizes
Animal Age Group All aquarium fish
Volume Habitat 150 - 300 L
Material Formaldehyde, polymer with 1,3-benzenediamine, fired clay
Colour orange / brown
Dosage 600 ml per 300 l
Contact us with any questions you have about this product

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Please Note: We only deliver ponds and pond plants on our own delivery vehicles!

The blue highlighted area on the map below is where we deliver on our own vehicle! Unfortunately, if you are not in one of these postcode zones we are unable to deliver certain items such as plants, small glass items and selective other products.



We offer a few different delivery options depending on the size and value of your order.

Orders over £50 qualify for free mainland UK (excludes Northern Ireland) delivery which will arrive within 3-5 working days of the order being processed.


Residents of Northern Ireland, please provide your EORI or XI Number.

If you do not have one, please follow the information at


Orders Below £50 in Mainland UK will be charged a standard delivery fee of £5.99.

Additional Shipping Charges

For any orders that do not include Aquariums, the below is charged:

Next Working Day Parcel Delivery to Mainland UK - £7.99 OR £2.99 if the order is over £50

Standard Parcel Delivery to Northern Ireland £8.99

Standard Parcel Delivery to Scottish Highlands & Islands £9.99

Standard Parcel Delivery to Jersey & Guernsey £12.99


For all Aquarium deliveries (Excluding biOrbs & Smaller Aquariums), the below is charged:

Next Working Day Pallet Delivery - £20

2 Hour Booking Slot Pallet Delivery - £20

Pallet Delivery to Northern Ireland - £38

Pallet Delivery to Isle of Wight (PO36 and Above) and Scottish Highlands (AB, PH, IV1-36, IV63, KW1-14, KY, PA21-41) - £38

Pallet Delivery to Southern Ireland - £48

Pallet Delivery to Offshore postcodes (KA27-28, PA20, PA42-49, PA60-90, ZE, JE, GY. IM) - £70

Pallet Delivery to the Scottish Isles (IV40-56, KW15-17) - £90

Pallet Delivery to Outer Hebrides (HS) - £120