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Ctenopoma Mouth Capacity?
August 19, 2009
5:12 pm
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Reva
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Well, the move is made, and the fish are enjoying their grand new home (568liter). As is our impulsive nature, I had to get four baby rainbows that I saw on sale and add to the school. Then last night I fed the Ctenopoma full of frozen worms, and had a nightmare that they ate the baby rainbows. Ctenopoma is about 4-5" and the new babies are somewhat deep bodied (body shape Bosemani) but only about the size of an almost full grown Rosey barb. I have seen the Ctenopoma yawn once or twice and it was a shocker. Do they only eat skinny little fish? /unsure.gif" style="vertical-align:middle" emoid=":unsure:" border="0" alt="unsure.gif" />

August 20, 2009
11:08 am
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retro_gk
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What species are we talking about? I've had Microctenopoma ansorgii catch and consume adult Pseudomugil gertrudae /sad.gif" style="vertical-align:middle" emoid=":(" border="0" alt="sad.gif" />

August 20, 2009
12:51 pm
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David Marshall
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Hey

The capacity that Ctenopoma ocellatum and C. acutirostre have to extend their mouth cavities is astonishing.

Regards David

August 20, 2009
6:30 pm
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Reva
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They are Ctenopoma acutirostre, retro...
Thanks David, astonishing is what I am afraid of. I think I am going to either set a 50gal up for them, or trade them for Bosemani's

August 20, 2009
7:55 pm
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Matt
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5" SL or TL Reva?

Cake or death?
August 21, 2009
12:59 am
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Reva
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QUOTE (Matt @ Aug 20 2009, 08:38 PM) < {POST_SNAPBACK}>
5" SL or TL Reva?


Ok Matt, you're talkin' like a scientist again /blink.gif" style="vertical-align:middle" emoid=":blink:" border="0" alt="blink.gif" />
Standard Length or Total Length? How do I tell? with or without fins? /huh.gif" style="vertical-align:middle" emoid=":huh:" border="0" alt="huh.gif" />

August 21, 2009
8:31 am
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Bluedave
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Standard length doesn't include the tail.

August 21, 2009
4:39 pm
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Reva
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thanks Dave, then the big one is four inches and the little one three SL.
Every night , when the lights go out, I drop in frozen mysis or bloodworms, and so far, the littlest rainbows and the kribensis are not even looked at. Articles online call the Ctenopoma a. "aggressive", but they seem completely calm and peaceful. ARE they "aggressive" or just able to eat smaller fish? The only aggression I have seen at all is the big one kinda bullies the little one and they ignore everyone else. Who would make good tankmates to them in your opinions?

August 21, 2009
4:51 pm
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Matt
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Mine were pretty much as you describe Reva; they form a pecking order but leave other fish alone. They are ambush predators so not really aggressive no. I think your rainbows and kribs are ok tankmates, actually.

Cake or death?
August 21, 2009
9:31 pm
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Reva
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QUOTE (Matt @ Aug 21 2009, 04:34 PM) < {POST_SNAPBACK}>
Mine were pretty much as you describe Reva; they form a pecking order but leave other fish alone. They are ambush predators so not really aggressive no. I think your rainbows and kribs are ok tankmates, actually.


thanks Matt, that really makes me feel better. If they were really hungry or really wanted to, they would have eaten the small fish by now, but I wonder about when they reach full potential size /ph34r.gif" style="vertical-align:middle" emoid=":ph34r:" border="0" alt="ph34r.gif" />
If I WERE to set up a tank just for them, what would be the ideal tankmates?

July 5, 2010
6:32 am
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N0body Of The Goat
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I was set to get a Ctenopoma autirostre for some weeks now, but then both my superb LFS (Aquajardin in Southampton) and the wholeaslers in Fareham have shipped in a batch of the congicum variety, which only reach ~9cm and are much less predatory to anything but young fry.

I'm planning at least a trio for my riverine setup! /biggrin.gif" style="vertical-align:middle" emoid=":D" border="0" alt="biggrin.gif" />

Constantly juggling mainly African riverine fish between 6 tanks, from 54 to 566l in size!
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