My observation with 2 baby armatus

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Mine has gotten so pissed of he stopped eating for about two weeks after being moved.
 
I don't really have any other choice though cuz if I put them in the 40g right now, they'll be picked off by the 5" scombs I have in there and if I put them in the 150g, they'll just be a really small snack for my large polys in there. I guess I just have to make the moves as least stressful as I can.


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They'll catch up to and pass those Scombs in no time,but yeah,they can't go in with them yet.
 
Well aware of this. My plan was when they get about 4", they would go in the 40g with the scombs and once they reach about 6-7", they'll go in the 150g with a 14" endli bichir and 7" lap bichir. I originally had the scombs in there, but within the first 30 min of them being in there, the endli tried to eat one so they need to get some size before they go in with the big boys.

Anyways, no one has answered my question yet. In the wild, do the babies just hang out in shallow, well planted areas with less current and migrate to more turbulent areas as they get bigger?
 
Current isnt necessarily in the tank for the fish to swim directly in, my Goliaths dont even sit in the current ... its the backlash of the current, and the constant, but gentle water movement that is important, I believe, for these fish ... when I first got into the hobby I bought 2 red tail payara that grew to about 7-8 inches ... then, after 4-5 months I noticed their slime coat was building up and sloughing off .... figured it was disease, treated the tank multiple times, to no avail ... finally I added a small water circulator and honestly all the fish issues went away, although it was too late for the tats, every one else made a miraculous turn around .... my goliaths lost their dusty look, my datnoids eyes cleared up simply from water movement .... so for payara I'd say too much current is a no no, but having a water circulator in a 10 gallon I dont think is a bad thing ... I do agree that having this fish in a 10 gallon worries me a lot for the reasons DB mentioned .... its not necessarily the space, but the huge swings in water parameters 1 dead feeder fish could cause... any problem will overrun the tank in no time without any way for you to realize it and fix it before its too late .... anyway this is my belief .... if possible point the water circulator at a wall of the tank, but at an angle so it pushes the water in a circle around the tank, and minimizes the harsh direct flow from the powerhead ... this is what I did in my 40 .... had the power head on the side middle of the tank and pointed it so it hit the back glass at the half way point of the tank causing a gentle whirlpool effect throughout the tank .... sorry I talk a lot :)

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No worries. Everything you stated is actually extremely helpful. I agree with both of you about the 10g and the swings that may occur but they are too small for the 40 and I don't have room for another 40 or similar.


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When you are training off live current is important. It speeds up their matabolism and makes them more hungry and easier to get off live. My 9" used to ride the current then go off it after awhile. I still think they need some current to stay healthy. Not torrential current that ATFs like but at least some good flow.
 
No worries. Everything you stated is actually extremely helpful. I agree with both of you about the 10g and the swings that may occur but they are too small for the 40 and I don't have room for another 40 or similar.


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Are all the tanks in one place? How crafty are you at DIY? Tie all those tanks together and it should be stable, and much less stress on the fish when you can just flop them from tank to tank with all the water the same rather then trying to acclimate to different water parameters. Maintenance gets much simpler too.

Just a thought. Lot of work up front but less headache in the long run. I run all my tanks/systems (minus pup/grow out tank) on drip systems so all the water's pretty much the same. When someone gets out of line they get flopped in another tank, no acclimation necessary.
 
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