Arapaima for xmas

  • We are currently upgrading MFK. thanks! -neo
I realize this thread is about a month old, but hows the little guy doing? Do these fish really grow as fast as people say they do?
 
He's doing great!! I'm not sure exactly how much he's grown, but he's seems to get thicker by the day, and probably has put on about an inch and a half or so in the past month.... yes they grow as fast as people say they do! Love this fish!!
 
Lets not get too far ahead of ourselves.... as a recent random loss for a no apparant reason of an 18" redtail catfish that I had raised since he was about an inch demonstrates, a lot more fish don't make it to monster size for one reason or another then do, and he's still a 10 inch fish fattening up in a grow out tank so I can move him into my 180g.... however, I do have a number of fish that are possilby gonna get huge..... I'm possibly moving sometime in spring or early summer, so no major plans til I sort that out, but ideally will set up a first indoor pond, or some kind of larger tank when the move happens, and sorta upgrade all the fish one tank at a time... we'll see, but that is the tennative plan, and then I'll go from there
 
To be honest, that's not getting ahead of yourself. In two years, you'll have a 6 ft fish. If you aren't prepared for the arapaima getting big fast, you should be soon. I'd put it in the 180 right away so you don't have development issues with it right away.

The #1 reason most 'monster sized' fish don't get to the adult size is fishkeepers cramming them into too small of a tank and causing major developmental problems as a young fish.
 
I only say that after years of trying different things to raise them. The ones that grew into healthy adults and lived well were started off in 3-4 ft kiddie pools, and at about 8-10" graduated to 8 or 10 ft round pools in rooms with lots of circulation. They are ten times as active as their adult counter parts. They need the space to swim in order to grow properly.
A lot of people put tops on arapaima tanks to keep them from jumping. The problem is that they need clean air to breathe, and closed tops can lead to issues with CO2 build up in their blood stream. I used mesh / net tops - keeps them in, and keeps the air moving for them.
I've also found that extremely young arapaima often have been taken out of the next prior to being fully weened off the 'milk' that is secreted from the parents. Not a lot of info is fact when it comes to parental care, but it's been my experience that they need whatever nurishment is in that 'milk' (be it antibodies or what not) is very necessary to the growth of the young.
 
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