Hope that the video i emailed worked, i have never sent a video before.....
okay the questions........
1) how much per day? at first they were 12mm long or so, they had 2 shrimps (has to be live to start with or they wont bite) per day each. The shrimps were a british species called crangon at abou 8 - 15 m long. dunno if you get them there or not?????? (Has to be live, even if you wiggle dead ones? nup, mine didnt fall for that old one

)
On one occasion i had to feed them terrestrial woodlice for about 3 or 4 days. they did eat them but everyone at cephbase says dont do it. And i never ever used artemia!
Now they are about 3" or so each, but some are bigger than others now. They eat one goldfish 2" each per day or slices of trout if stuck. I make sure they have at least 2 or 3 live crabs per week each week. I get them from a local beach (2" across carapace now) at first i took off there claws.
2)I would say they doubled their mass every week i had them. They have grown from 1/2" to 3" or so in 3 months. only another 12" or so to go

3) I have 7 together. The tank is 72"long, 24"tall and 30"front to back with live rock, 12"x24tallx12inches wet/dry filter, nitrate filter, turboflotor5000, 2 coralife10000k, 2 actinics, sump and weekly doses of calcium. the octopuses also live in tanks joined on to the same sumps. They never fight but if one grabs the first goldfish the others chase it around the tank. They sometimes lock tentacles but no harm seems to be done. Oh, except all that bloody ink, hence the big skimmer, but if your quick you can catch it in a fine net!
Just ask any questions you want...... I had to bug plenty people to get this far and i am more than happy to pass on the info
Did you read on tomno that the little buggers have started spitting water out the tank?
haha
Colin
I have also included a pic of my tank the cuttlefish are living in right now, pic from dec 2000