Sticklebacks were very common in the crappie minnows that I used to buy for fishing. I'm not seeing them as often now. If RC51 could post a pic, that would help immensely in I.D.'ing the shiner.

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3/4 to 1 1/4 ac pond LMB, SMB, PS, BG, RES, CC, YP, Bardello BG, (RBT & Blue Tilapia - seasonal).