I have had 7 armatus in the past 2 years.
First batch, 3 Armatus around 8-9". Acquired them in Dec of 08.
http://www.monsterfishkeepers.com/forums/showthread.php?t=216230
Kept them in 120 (4x2), sold 2 in the first 3-4 months. Kept the last one until about 12" and traded him around October 09.
Their diet consist of krill, shrimp and smelt. The last one was taking massivore before I traded it for an AUL (aussie lungfish).
Second Batch; I wanted to start a shoal, so in August of 09 I bought 4 of Infinite Aquatics batch. They came in around 2-3", I stick them in a 75 gallon tank for grow out
Fed them QT'ed feeders until they get around 6-7" before I tried the starving method.
I lost the first one around Nov of 09. It was the smallest one and he was alienated from the rest of the pack. Started to swim funny and eventually died. They were still on feeders (rosies and small goldfish)
Shorty after that, I started the starving method. One ate shrimp pretty much right away, the other will only eat nightcrawlers and the last only take feeders. After about 2 months, all three started to take smelt, shrimp and krill.
I lost the 2nd one in May 2010. They got to around 9-10" (they started to grow VERY fast once they're off feeders). He was bullied by the african aro, when I was away fro 2-3 days for the weekend.
I pulled the afro aro and kept the last two.
Fast forward to present, They're about 14" now, the larger one grows taller than the smaller one.
Their diet consist of; smelt and shrimp. Those two can eat about 5-6 large smelts (4" ) per feeding. I feed them every other day.
Tankmates: Tigrinus, gulper, leo and hystrix.
Filtration: Eheim 2262, Eheim 2217 and drip system (15 gallons of freshwater drip per day)
No heater, I don't run heater on any of my tanks. House stays around 70-74 degrees. Tanks stays around 76-77 degrees.
PH: 7.0 constant with drip system
Lights on 8 hours a day
Unpainted glass on all 4 sides and bottom.
They're still in the original 75 gallon they grew up in LOL. I am scared to move them to the 540. I am waiting to move 3 more datnoids and introduced the larger fei feng (in another tank) to the 540 so that the dats will get familiarized(sp) with characins.
They get along fine, I see the larger one occasionally charging against the smaller one. I'd like to think it's a territotial thing, but we'll see once they move to the 540 (10 feet long x 3 feet wide)
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