Aqua Natural River Gravel Silver Pearl 2-4mm Weight:4.5kg The use of either CO2

The use of either CO2 injection or Flourish Excel™ does not necessarily negate the use of the other

gallons of pond water

having an extreme affinity for nitrogenous organics

Pump Output: 210-300 L/h (55-80 US Gal/h)

Aqua Natural River Gravel Silver Pearl 2-4mm Weight:4.5kg The use of either CO2Aqua Natural Silver Pearl is, without doubt, our premium aquarium gravel. When wet it gives off a blue silver and light Jade hues, however, dry it is fresh and bright with blazing white gravel highlighted with grey pebbles. Its natural smooth roundness comes from being deposited in the New Zealand South Island plains by ancient river flows coming from glacial alpine areas. Aquarium safe Reptile safe Pure New Zealand Beauty Triple Washed