The squid we kept were out of local harbour about 10 -25 cm
avoided"butt burn" by having floating polystyrene or wood raft, they used as shelter,
took longer to "tame" than octopus but put that down to living in open water - flight reflex - they go fast and straight when scared, kept tank darker for a few days
in time they hand fed easily, all were started on live food young sprats and sweep, also shrimp
ammonia levels seemed to be critical to there survival, even slight spikes put them off colour
cant wait for summer so we can try some in the big pool