I'm concerned about the stability of an UGF for shrimp, especially since I have dense plant growth. I've decided to try and get my fluval 104, damage impeller, working again - or find a suitable cheap replacement. As such....
So picked up some lily pipes, knockoff versions. What makes this one special, it is 13mm in diameter yet only drop into the tank ~12cm. Thus, in a tank where I have 15cm from the top to the substrate, it just fits. No other pipes were of these dimensions, so it seemed to make sense. I was going to go with the hinterfeld 10mm lily pipes, but I didn't like the water flow restriction, or the fact that hinterfeld intake pipes only have like 5 slits. This one has 10 or so.
Looking at its quality, I'd say its meh at best. I bought knockoff lily pipes before for my larger tank, and they came in nothing but a cardboard box, perfectly intact and with near flawless glass quality/finish; I couldn't believe they weren't broken, they were just flopping around against eachother in there all the way. This intake came in like three layers of foam padding, bubble wrap, etc and yet it has visible imperfections. You can see small glass chips on the inlet tubes, on the cut line, the end is bumpy, blah.