Onion01;1560353; said:
hey arapaimag quick question. They say that a fish will never get as big in the tank as it will in the wild due to space, feeding, etc. Do you think with tanks as big as yours, your fish have a chance at achieving their maximum possible size? Like 15' arapaimas and 4' pacus, etc?
Good question.
I think that some fish already do get bigger in peoples tanks today than they have gotten in the wild in the past century. I think size of tank, filtration and diet are all key to getting max size.
Look at some of the giants that super MFK members like John PTC, Todd 2500g, Ted 2400-8000, Frank 26,000 achieve with all three parameters that I mentioned at the best levels. I don't consider myself in the same league as many of these top MFK members. While my tanks are big I don't think I feed or filter to their levels.
On another note I feel that many MFK are incredible with what they achieve in tanks a lot smaller than mine. I recognize and salute their high level of proficiency.
15' arapaima might be possible with someone as good as John PTC if he had a 100k+ tank (maybe his next conversion) and a further 100 year more life span.
4' pacus I think can be achieved in the Colossoma brachypomum species in mega home tanks. I don't know if Colossoma macropomum or Colossoma oculus can.
Ideally if someone lived in the tropics and could provide a protected habitat like some in Brazil where the lakes/ponds are stocked for fishing is the best chance for achieving the max size of most fishes. Here is the sport fishing world record Colossoma macropomum caught by rod & reel. This is probably not the biggest one ever caught, just the biggest sport fishing and it occurred in 2006.
Date: 2006
English name: Black Pacu
Scientific name: Colossoma macropomum
Method: Sportfishing with rod & reel
Weight: 40 kg (88 lb 3 oz)
Length: over 100 cm (39 inches)
Water: fishing lake Tio Oscar
Country: Brazil
Angler: Mr. Gilberto Chudi Jr.
Tio Oscar is a popular, large fishing lake with touristic infrastructure 75 km outside Castelo Branco. Of course not comparable with the wild waters of the Amazon. The lake is well stocked with numerous species and Pacus from 30-40 kg are regularly caught there. Maybe the best water for Black Pacus (Tambaquis) worldwide.
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