Hydra Devour (Grain size 0.5-2.0mm) For Fixed or Fluidised Bed Filters
Pack Size: 100gPack Size: 250gPack Size: 500g
Pack Size: 1 KgPack Size: 5 Kg

Hydra Devour (Grain size 0.5-2.0mm) For Fixed or Fluidised Bed Filters

Our Price  £16.50
List Price  £17.74
Saving Of  £1.24 (7%)
(Inc. 20% VAT)(£13.75 Exc. VAT)

  (6 Reviews)
  • Aquarium phosphate and silicate remover, Grain Size 0.5-2.0mm
  • Adsorptive removal of phosphate and silicate from water in aquariums
  • Use 0.5-2.0 - Filter Cartridges, Fixed or Fluidised Beds. 2-4mm - Filter Bags
  • Shelf life 3 years, 1 kilo treats 10,000 ltr fresh water, 5,000 ltr sea water

Brand:  HYDRA

Features and Advantages

  • Hydra Devour is a specially manufactured ferric hydroxide FeO(OH) granular material for aquatic systems.
  • Hydra Devour’s stabile form and reactivity remain under long term aqueous conditions
  • Hydra Devour rapidly removes phosphates, arsenic, copper, selenium, chromate and other heavy metals from aquatic water systems.
  • Hydra Devour’s unique nano-sized porous surface structure has over 250m²/g ensuring super efficient absorption in all applications and systems.
  • Hydra Devour is ideal for aquariums both small and large as well as ponds.
  • Absorption Capacity In fresh water Hydra Devour will absorb Phosphates 12-16g/kg, Heavy Metals 5-8g/kg.


Hydra Devour is a high-performing adsorption granulate based on iron hydroxide. It was specifically developed for adsorptive removal of phosphate and silicate from water in fresh and seawater aquariums and garden ponds.

Due to its large surface area of over 250m²/g, it can bind phosphate ions quickly, effectively and binds them irreversibly to the filter medium.

All of our production facilities are audited yearly to international standards and the special production and drying procedure of Hydra Devour makes it a very robust, stable, long lasting media and highly reactive to phosphates.

Whereas competitors use fine particles to achieve effectiveness, Hydra Devour is more effective not because of fine particles, but because of the nanosized porous internal structure and surface.

Average Rating (6 Reviews):  
Write a Review and share your opinions!

Quick Delivery
26 February 2020  | 

Quick delivery, easy to use and does as it says on the label.


This review has not been appraised.

Great value for money
11 October 2019  | 

Fully recommend with product, fast delivery, good value for money on a product that actually works.


This review has not been appraised.

Best on the market
11 May 2019  | 

I have used this product for years and it has never let me down. Itís the best on the market and phosphate levels are always at 0.


4 of 4 people found this review helpful.

Works so well
24 March 2019  | 

I use this all the time in my saltwater tank. It works so well and does at it states. I will forever continue to use this perfect product.


3 of 3 people found this review helpful.

18 September 2018  | 

My aquarium always thrives once I have put this product in the filter. It is a fantastic product.


5 of 5 people found this review helpful.

Amazing grains
02 May 2018  | 

This is amazing stuff. It consistently keeps phosphate levels at 0. I recommend this product to all fish parents especially if you are having phosphate problems.


7 of 7 people found this review helpful.