Fish Aquarium Sand Vs Gravel. Sand much finer so it depends a lot on which type of sand. There is nothing that looks more natural than sand.
Sand is compact and does not allow water to pass through it as freely as gravel does. Sand has a couple of other benefits when compared to gravel. One benefit is the food and poo wont get stuck in between the gravel and can be removed quite easily since goldies are already huge ammonia producers.
The extra fine particles feel much softer compared.
If youre going to get a large scavenger fish you should definitely do gravel. There are some things to consider while chosing the substrate. Sand has a tiny particle size while gravel has a larger particle size. Sand has a couple of other benefits when compared to gravel.