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Hey everyone I just bought a diamond goby for my 55 gallon tank. They do best with sandy substrate but I have larger crushed coral as substrate. Is this still ok?
They can have severe issues with substrate that is too big for them to sift. it can hurt their mouths and insides too. :-( Thats how they eat so that can create another issue.....
+1 try and give him back to the lfs. If you dont he could die because of the rocks like carey said, starve because he has no food to eat, an even if you do replace the sand it wont be established and there will be nofood for him
Mine likes shrimp flakes and blood worms BUT as stated it may harm his mouth
Also they LOVE redecorating (moving sand, digging tunnels and sand caves) so this will affect him