I know this has probably been asked before heaps but i wanted to know what sorta chances are there of a senegal eating gravel? The gravel i have is about 5-8mm i have no idea what that is in inches but i guess most of the pieces are about half the size of your fingernail. I see lots of you with great collections of polys mainly seem to use gravel so it musnt be that big a chance of swallowing. Ide prefer not to change to sand but i will if i have too. At the moment its in a small 10g bare bottom tank but he really needs to go into one of my bigger tanks which all have gravel. Im looking at getting another one and they are fairly expensive here (hundreds of $) so ide hate to loose them to something as stupid as that.