What kind of gravel or sand do you prefer for the bottom of your tanks?? What size? I've used REALLY small gravel in the past and enjoyed it but feel like it's harder to keep clean.
It may depend on the fish you keep.
If you keep fish that come from flowing streams, larger size gravel may be best.
If you keep Geophagines, sand might be best, because they sift constantly.
If you keep African rift lake species, large rocks for some, sand for others.
If you keep Amazonian species, some spend half the year in flooded forest.
Below is a photo of Geophagine habitat.
View attachment 1279347
below a video of a natural habitat in a Cenote in Mexico
Azul imovie edit
