Just an idea, but the drain is always an issue on tanks or totes. Fish are constantly being pulled into it, and even with a net in front of it, the drain still gets clogged up. I have a twin 60 fish haul tank, and I'm working on a vertical slide in elbowed drain riser that has hundreds of holes in it. That way the fish couldn't get out or block the drain, and the suction should be so spread out fish wouldn't feel it.
Getting a bait net would help since they have flat bottoms.
