So I put sand in my tank a couple week ago and had been doing a water change and one of my guys pooped and I noticed a bit of sand in his poop which is strange because they only eat pellets out of a jar. I didn't think too much of it because some sand does occasionally get in the jar with all their moving around. However I just now saw one of them take a huge mouthful of sand and kind of spit some out but it looks like he definitely ate some. He was just sitting there and then just up and took a huge mouthful for no apparent reason.
Is this normal or dangerous? Should I go back to bare bottom or will they stop eating sand once they get used to it?
Is this normal or dangerous? Should I go back to bare bottom or will they stop eating sand once they get used to it?