Is it normal for a shrimp and goby to pair up like your have?
For certain kinds, yep! There are several kinds of gobies and a couple pistol shrimp that are kept in aquariums that will. And for the most part you can mix and match them. The gobies use the shrimp to dig holes, and the shrimp use the gobies for protection and food!
Snapping shrimp close their claws so quickly, they create shock waves. This video reveals how they do it
Less than 10 centimeters long, the few dozen species of snapping shrimp may not look like formidable foes. But their lightning-fast claws close so quickly that they make sounds louder than a gunshot, and create shock waves in the water that stun fish, worms, and other prey. But the evolutionary steps from simple pinching to ultrafast snapping were a mystery to scientists. Now, a team of biologists has closely examined the claw anatomies of 114 species of shrimp, including about a dozen known snapping species. As they report in Current Biology, they found two new types of claw joints heretofore unknown to science. The first was a simple slip joint—common in many pocket knives—in which a tiny ridge helps keep the claw open until enough pressure snaps it closed. This allows the claw to close a bit faster than usual. The second was an even further modified version called a cocking slip joint, where the ridge fully cocks the claw open. That allows snapping shrimp to build up incredible tension in the claw’s muscles before a secondary muscle movement releases it, slamming it shut at ultrafast speeds and generating a shock wave.
Check out this cool video! My shrimp, Mario, is a pistol shrimp.
Mario and Yoshi have found each other and are settling in!
Mario a couple nights ago, before I put him in the tank. He was a very angry bean.
did you ever catch mario? 😮
Unfortunately not! He’s a clever fellow, and Yoshi kept warning him when I put the net close. I think it’ll be ok though – they have a tunnel that goes into the rock, so they can stay in the rock while we move them
I feel like he’s mocking me and my feeble attempts to catch him
Trying to catch Mario the pistol shrimp, since we plan on moving the tanks to our new house this weekend. Unfortunately for me, Mario is a very smart shrimp.
Mario and Yoshi’s hole is the center of activity
Mario snapped at the emerald crab! You can hear his pistol claw make a snapping sound in the video. It sounds louder in person!