I originally had a black substrate in my tank and then moved to pool filter sand and have now got 3mm crushed coral and the pure white of the crushed coral is my favourite.
I also found my tank looked dirty sometimes as the fish waste blended in with the black so you couldn't always see where to vac. Now with the white substrate I can see exactly where to vac and my tank looks a lot better and my water looks crystal clear.
I also found my tank looked dirty sometimes as the fish waste blended in with the black so you couldn't always see where to vac. Now with the white substrate I can see exactly where to vac and my tank looks a lot better and my water looks crystal clear.
