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I have quite an open top tank too. About 8cm space between lights and water level.

Normally shrimps jump because of unsuitable water conditions, from experience...
 

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spituch said:
One thing I've noticed is that with extremely dense planting, especially at the water surface, fish that tend to be jumpers don't do it as often. I think fish (or shrimp) that feel threatened jump, but if they see that the surface is restricted and there is favorable cover nearby, they go for the protection of the plants. I think simply having the protection of the plants puts fish at ease, reduces their stress levels, and then they hardly jump.

In your case, if they are jumping from the rear of the tank, can you put more (higher plants) in that area?

Steve Pituch
My tank layout is all glosso and rocks and no-surface cover at all and my Yamatos don't jump. So I think shrimps jump mainly due to lousy water...

I also notice different batches fo shrimps from different LFSs have different behaviours, appetites, etc... so it really depends on whether your shrimps are "jumpy"? :lol:
 
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