the first gar is a true gator gar...grows to 10 feet....second gar is a florida gar usually grows to about 2 feet...the redtail cat can get over 5 feet and weigh over 100 lbs....i also see a peacock bass...they can get to almost 3 feet in the wild(depending on which species)...not likely to get that big in an aquarium...you seem to like all the big guys...get a big tank...at their current sizes you have a few months...after that they will start to die on you from not being given proper housing...good luck you have some great stuff there!