I'm in the process of setting up a new tank that will house, among other fish, clown loaches.
While trying to decide what gravel/sand to use, I've come across the notion of gravels being
"Soft Belly Safe" (or not) from the CaribSea site. For example: http://www.caribsea.com/pages/products/super_nat.html
Is this a real concern, or just marketing hype?
If real, unless told by the manufacturer, how would you know whether a gravel or sand is safe, for example, for my clown loaches?
In particular, I have #0 gravel that I got last time I was at the store. Is it "Soft Belly Safe"?
Thanks