Hugo Kamishi Quartz white gravel 1mm ( approximate guideline) is a quartz based gravel which looks stunning in aquariums .
A Fine extra white grade of between 0.8-1.2mm
Hugo Say – When it comes to the diameter of the stones, there is a wide selection to choose from. As a rule, the faster the water flows within the habitat, the larger the size of grain you can use. This also helps to support good root formation for larger plants. You will also need to give some thought to the types of fish that will live in your tank. If you have bottom feeding fish, you will definitely need to choose rounded gravel so that your pets don’t injure themselves on any sharp edges. Once you have found the right kind of quartz gravel, you should rinse it thoroughly in cold water before putting it into the tank.
As an alternative to quartz gravel, you could use quartz sand, which is also available in a variety of colours. It’s perfect for fish that like to burrow and is pretty much a must for most types of catfish and angelfish. That said, using sand will theoretically limit the selection of plants you can use, as not all plants will find enough stability in such a loose substrate. You can counterbalance this potential drawback by adding larger stones around the plants to protect them.
The most important function that gravel serves is to provide a home for beneficial bacteria. Those bacterial colonies are necessary to eliminate waste produced by the fish, leftover food, and plant debris in the aquarium. If the bacteria don’t have a comfy gravel bed to live in they will find other places, but may not grow in sufficient quantities to keep the aquarium safe for your fish.