Originally Posted by niedogg
Hey everyone, I'm new here but have consulted this forum many times. Recently I have had a 5.5 gallon tank with CRS, plants, and a piece of driftwood. The shrimp have slowly died off and now I've noticed these small, white bugs. They crawl around on the substrate. They resemble a shrimp when they swim.
Anybody know what these creepy things are? Are they harmful?
Surprised no one got back to you yet. Might be too late but those are scuds. Generally harmless, but some species have larger claws and may prey on shrimp. Chances are, they out competed the shrimp for food, which killed them off.