Substrate fertilisers

Substrate fertilisers at www.aquaessentials.co.uk. By adding this type of fertiliser to your aquarium substrate is means you are putting goodness directly into the roots of your aquarium plants. Aquatic plants will absorb their nutrients from their leaves as well but heavy root feeders perfer to absorb by the roots themselves. You can always tell which plants these are because their roots will often stretch throughout the entire tank.