A lot of you have had great success with bimacs, and I've had my first baby bimac for two days now. My former Bali octopus had no interest in escaping, but I better not take a chance, so I bought that VERY fine netting (tulle?) at a fabric store to put around my two Penguin filters intakes, but the filters hang off the back of the aquarium and the water pours in. I cannot see how I can seal that. Basically, if an octopus was very determined to get out of my tank, he could How many of you have lost bimacs to an attempted escape? Are they really generally pretty good about staying in the tank?