hi guys , i want to ask for your expertise on the red tailed catfish , at the moment i have myn in a 182 gallon tank , 7 foot long , the question is realistically how big should i let him get before moving him to a bigger aquarium or even pond , would he be ok at 3 ft in this tank . im uk based and it seems to be less people here with knowledge of the bigger cats . any info would be great , Andy