london zoo have a 29er in with their bowfin.... and bolton aquarium have a couple well over 24" havent been for bout 3yrs but one had recently been donated in last time i was there that was up around the 29-32 mark. Ive got a theory on this, maybe sol will back me up. It is perfectly reasonable to get a fl up to 24-32" but none of us will do it because of our tanks, stocking dessions, water temp, and water flow. Gars in the uk come about 40% as do 100% amia's from the illeagal trade in us natives. when ever u see the larger size gars for sale in uk its from a us native keeper, with colder tanks and a much more natural shaped fish.... i dont know but we all and as for 23" meh baby i got a 23"er... and she got years on her yet! i know for fact i could blag london zoo to let me get a tape shoot with their big fl the 29" and ill get a tape shot of my big gal... if it takes me 4yrs i dont care xander ill prove over 24 is doable!