1 kg = 6.45 €
WIO Eldlery gravel creates a very natural riverbed impression. It does not raise the hardness of the water. By mixing different sizes to create depth in your aquarium, you can make the layout look more natural. The smallest size, S size can be also spread directly on the aquarium and used as base sand.
Elderly gravel is the perfect match for Elderly Boulder and Elderly Nano Rocks, please use it to create stone slides and fine details in your scape. You will also get stunning contrast by using Heaven River Sand.
S: Size mix from 3 - 10mm
Mix: Size mix from 3 - 40mm
L: Size mix from 20 - 40mm
*Does not affect water hardness
Tips:
Most WIO gravels come completely clean. Even though, we recommend to rinse gravels with water before use to remove any remaining dust and to avoid buoyancy of particles on the water fill up.
We highly recommend you to mix different sizes to create depth in your aquarium. By doing so, it will also look more natural.
You can easily test if a gravel is inert or if it will change slightly the pH and hardness. Simply place few drops of vinegar on the rock. If the vinegar (a base substance) fizzes or foams, it indicates that the gravel contains some calcium.
Gravels that contain calcium may alter the pH and kH. This can be especially pronounced if you have acidic water or CO2 addition. You can easily control it by regular water changes with osmotic or soft water. You can also use a water softener.