Aquarium Substrates

Choosing substrate for your fish tank can be a fun experience and a big part of building your tank's look. Whether you opt for gravel, sand or pebbles, substrate can be beneficial to your aquarium to aid bacteria and create a more natural environment for your fish. But part of the fun can be choosing different colours and textures to customise your tank.

Whether you want to create a natural looking tank with Swell Aquarium Silver Sand or brighten up a child's nano tank with something more colourful like our own brand Harlequin Gravel, there is plenty to choose from, all at affordable prices from Swell UK.

If you're starting your own marine tank with a coral reef, Caribsea Aragonite Aragamax Grand Bahama can be a fantastic substrate for your tank. Complete with shells to make your aquarium look even more amazing, this sand helps to create a natural biological and mineralogical balance to prevent algae growth and improve the health of your fish.

At Swell UK, we don't mess around. We know you want to have your tank set up as soon as possible and we would hate to think we would cause any delay. That's why we offer Next Working Day Delivery options, and if you order before 3pm on weekdays we despatch your substrate the very day!