This is what I do also. I use a Python for my other tanks but it's too hard to control. As far as I know, I've never lost any shrimp using a length of tubing.For shrimp tanks, which are usually pretty simple in the most part anyways, I just use a bucket and some hosing and syphon it out from the water column (not down on the substrate or anything) and keep a thumb over the output end so I can stop/slow water flow incase anything gets too close.