# Fish Substrates

Shop Aquarium Substrates at Pet n Pony, featuring quality gravel and substrate options from Marina to create the perfect base for your fish tank.

The right substrate enhances the appearance of your aquarium, provides a natural environment for fish, and supports the growth of beneficial bacteria in the tank. Our range includes natural and coloured gravel in a variety of sizes and colours to suit any aquarium style and fish species.

Create a beautiful and healthy aquarium environment with our quality gravel and substrate range.

## Products in this collection

- [Marina Decorative Gravel White 10kg](https://petnpony.co.uk/products/marina-decorative-gravel-white-10kg) - 22.99 GBP
- [Marina Decorative Gravel Black 10kg](https://petnpony.co.uk/products/marina-decorative-gravel-black-10kg) - 22.99 GBP
- [Marina Gravel Natural Desert Beige](https://petnpony.co.uk/products/marina-gravel-natural-desert-beige) - 4.69 GBP

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> Source: [Pet n Pony](https://petnpony.co.uk/collections/fish-substrates)
> Updated: 2026-06-04