It depends what you are fishing for in some respects: I was fishing Tunnel Barn Farm regularly a few seasons back and leaving the joker in a bucket of leam seamed to slow it down a bit and by feeding that and frozen joker you caught better quality fish as the ‘bits’ didn’t seem as interested as if you were fishing ‘fresh.’
I have gone down the tank and airstone route and the improvement to your bait can be incredible as the bait is purged and becomes bright red and incredibly active. IF I was fishing for roach using joker as bait I would probably do this but it is a bit of a faff riddling the joker off twice a day (Once you have got rid of the slow and dead joker they do go through the riddle quicker. Freeze anything you take off.)