I've decided to give up my secret to the all powerful invention, THE PANTYHOSE NET!!! Step one: Buy a net. Step two: Buy some pantyhose Step three: Cut off a leg of the pantyhose and push it in to the net. Step four: Tie the pantyhose so it fits the net snuggly and doesn't fall off Step five: When your octo inks, stick the net in there and scoop up the ink. Wash pantyhose net thoroughly. The pantyhose will catch most of the mucus so it doesn't harm your octo or keep you worrying if he/she will survive the inking. I've used it once and the water didn't get cloudy and I only did a five percent water change. It is also the cheapest piece of octo equipment that I know of, with nets going for less than two dollars. Caution: Do not eat.