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Otocinclus Cocama
September 22, 2010
1:42 pm
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Nomad
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Right guys

I've been given a challenge.

I am being given a group of about a dozen Otocinclus cocama to attempt to breed by another member of my local aquarium society. He has had no success and I can find no published reports of this fish having been bred.

Anybody got any relevant experience or breeding success I can draw on for this project?
Any links to any articles?

Thanks.

September 22, 2010
2:10 pm
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Mark Duffill
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I cant offer any info about Otocinclus cocama but I have done a couple of Otto species in the past and I found they did best in well matured setup that are heavily planted, all of my Otto spawning took place in a 30 gallon tank filled with Hygrophillia polysperma with algae covered cobbles and clay pots on the bottom, I also used to feed them quite a bit of spinach which they seemed to really enjoy and occasionally a chopped prawn.

Good luck with your project /thumbs_up.gif" style="vertical-align:middle" emoid=":thumbsup:" border="0" alt="thumbs_up.gif" />

September 22, 2010
3:29 pm
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Nomad
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QUOTE (Mad Duff @ Sep 22 2010, 11:53 PM) < {POST_SNAPBACK}>
I cant offer any info about Otocinclus cocama but I have done a couple of Otto species in the past and I found they did best in well matured setup that are heavily planted, all of my Otto spawning took place in a 30 gallon tank filled with Hygrophillia polysperma with algae covered cobbles and clay pots on the bottom, I also used to feed them quite a bit of spinach which they seemed to really enjoy and occasionally a chopped prawn.

Good luck with your project /thumbs_up.gif" style="vertical-align:middle" emoid=":thumbsup:" border="0" alt="thumbs_up.gif" />

i've only ever been able to get affinis in the past and find they like peas, zuchinnni and lettuce in addition to the spinach. Despite treports I have seen that wild ottos are only ever found with vegetable matter in their gut, I find the affinis like daphnia and microworms.

I also use hygrophila, along with anubias and Java fern. They love to hang out on the long leaves of the latter. I have a liberal supply of drift wood and some river rocks.

I will start out with a moderate flow and vary it and the temperature to find what triggers them.

I hope this works with the zebras...

Thanks for the wishes, I think I'll need all the luck I can get! I'll keep you informed of my progress in this little endevour.

September 22, 2010
3:45 pm
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Matt
Málaga, Spain
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QUOTE (Nomad @ Sep 22 2010, 03:12 PM) < {POST_SNAPBACK}>
Despite treports I have seen that wild ottos are only ever found with vegetable matter in their gut, I find the affinis like daphnia and microworms.

These reports may not take micro-organisms into account - will have a look through some papers when I get home to see if I have anything on Otocinclus ecology or life history in nature.

Cake or death?
September 22, 2010
4:29 pm
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Nomad
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Thanks Matt. I want to go into this armed with the best knowledge I can get. From the sounds of it, these poor little fellas are doing it tough in the wild. It'd be nice to get a captive population going.

September 22, 2010
5:37 pm
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Eyrie
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My understanding is that aufwuchs forms part of their diet and it's the absence of this that often causes starvation in captive otos.

Good luck with the breeding attempt.

Mature, sensible signature required for responsible position. Good prospects for the right candidate. Apply within.
September 22, 2010
6:27 pm
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Mark Duffill
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QUOTE (Eyrie @ Sep 22 2010, 06:20 PM) < {POST_SNAPBACK}>
My understanding is that aufwuchs forms part of their diet and it's the absence of this that often causes starvation in captive otos.

Yeah works the same way with hillstream loaches, it is a good idea to promote algae and moss growth on rocks ect as they will graze these areas for long periods without removing the algae.

September 22, 2010
8:38 pm
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MatsP
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I've written two articles discussing feeding of Loricariidae - one that focuses on things you can feed the fish, and one that is more about "which genus eats what". The subject of "what's right for this fish" - and if you let the fish choose entirely on their own is akin to letting a ten-year old design their own menu - in most cases, that's not going to be at all healthy, full of sweets and salt, and likely to contain very few good vegetables... So, in nature, suckermouth catfish are unlikely to find much food that contains much protein. Giving them small amounts of small-size live or frozen foods is fine, but the majority should be vegetable based. Live/frozen foods is like pizza and hamburgers to humans - something that isn't terribly bad if it's part of an otherwise healthy diet, but if eaten all the time, not that great.

Search for "Feeding Pleco" on google, and my articles should be on the first page (on planetcatfish.com).

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Mats
--
Mats

September 24, 2010
4:17 pm
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Nomad
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Thanks Matt.

I have bred a nmber of the loricariads and otos and other algae eating cats. I'll have a look at those articles. I find a mix of leafy vegetable (spinach, lettuce etc), peas and beans, blanched and skinned, a little carrot, zuchinni and a few pulses work well as a general diet, to supplement the algaes.

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