Do you own a cephalopod tank? Great! Please fill out this simple form. The results will be posted as a reply to this thread. Note that you must be a TONMO member to fill out the form. You can always go back and edit your results later. Results table here. Drawback: horizontal scrolling. Sorry about that! Nice feature: sortable columns (just click the column name to sort ascending or descending). Results graph here. Nice!