Would this matter not be best remaining in the hands of the SPCA? Would a federation of fishkeeping clubs be regarded as experts in looking after rats, mice, cats and dogs etc even without the diverse opinions out there on the correct or best way to look after fish. It is regarded by many people to be cruel to keep any fish in any sized aquarium. Many others think it is cruel to catch fish on a hook and line just for pleasure and then let them go but I don't hear too many objections to that. We could be making a rod for our own backs.