Can fish eat sand?

760fishaddict

Candiru
MFK Member
Jun 1, 2014
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yucca valley
I recently started feeding my fish talapia and its working great for all of my fish but my catfish, for the first week he was eating it like crazy but I noticed he was picking up some sand off the bottom as hes a bottom feeder. Now he wont touch it and I have no idea why.
 

jclyde13

Blue Tier VIP
MFK Member
Jun 18, 2009
4,611
177
371
28
Louisville, KY
Sand isn't usually an issue. What doesn't get sifted out through the gills gets passed later on... Though I can't explain why they'd be refusing the tilapia...
 
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