A tubeater is a pattern that consumes the output of a tubstretcher. The smallest known tubeater was found by Nicolay Beluchenko (September 2005), and is shown below in conjunction with the smallest known tubstretcher.

x = 29, y = 23, rule = B3/S23 8bo$7b2o$7bobo2$10b2o$10b2o$23b3o$bo6b2o3bo9bo$2o5bo2bobobo9bo$obo3b2o bo3bobo10b3o$4bo9bobo$3bo11bobo5b2o$3bo2bo9bobo4bobobo$17bobo3bo3b2o$ 18bo5bo$19bo2b2o2bo$21bob4o$22b3o3bo$26b2o$27bo$27b2o$26bo$27b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THEME 6 GRID GRIDMAJOR 0 THUMBLAUNCH THUMBSIZE 2 GPS 4 ]]