My Otocinclus catfish breed

becks

Member
Joined
8 Jul 2018
Messages
91
Location
England
I’m amazed,

I was doing my weekly tank maintenance tonight; disturbing the detritus and water change.

whilst, pressing into my weeping moss...I saw a baby fish dart out of from the moss and attach onto the glass. I looked closer and realised it was a baby otocinclus catfish! Completely amazed as these are difficult fish to keep at the best of times!

its buggered up my maintenance as I was scared disturbing the moss and siphoning any babies up. :eek:. it seems they live within the moss eating algae etc.

I always wondered why my Bolivian ram use to inspect my moss and pick at it every now and then.

I never knew my fish had even bred, the only difference was their behaviour changed by hiding within the growth and not sticking to the glass as much. Especially as I have hard water living in Essex too.

ignore the detritus, I had disturbed it during my water change.
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Onoma1

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Joined
12 Aug 2018
Messages
384
Location
Rochdale
Congratulations. Its a difficult fish to breed! You must have fantastic tank conditions. I have only done this once (also by accident) with just one fish surviving.
 

becks

Member
Joined
8 Jul 2018
Messages
91
Location
England
Congratulations. Its a difficult fish to breed! You must have fantastic tank conditions. I have only done this once (also by accident) with just one fish surviving.
I don’t test my water :angelic:. I just carry out weekly water changes siphoning what I can, clean the filter every few weeks in a heavily planted tank dosing el. But it’s lightly stocked.

I’m really chuffed!
 

becks

Member
Joined
8 Jul 2018
Messages
91
Location
England
I have nine otos, when I first got them they use to be on the glass a lot, where as now they spend most their time within the plants etc
 

jaypeecee

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Joined
21 Jan 2015
Messages
1,218
Location
Bracknell
Hi @becks
I’m really chuffed!
I'm not surprised that you're chuffed. It's quite something, eh? How many adult Otos do you have in your tank? Is the tank well-established (at least six months old), at what temperature do you keep your tank? Does your tank have 'low' lighting? Plants? CO2? What did you feed the Otos on? Do the Otos have the tank to themselves? The list goes on...

Well done!

JPC
 

becks

Member
Joined
8 Jul 2018
Messages
91
Location
England
L90 X W50 X H45 Rimless

Tank age: Six months
Oto numbers: 9 or 10
Temperature: 22.5c, however with the heatwave, I saw temps of 25.5.
Lighting: Vivid RGB 2 at 30% my lighting cycle starts at 1600 until 2200
Heavy planted with quite a lot of weeping moss on the rocks
CO2 injection
EL dosing with a weekly water change: maybe the weekly water change spurred the breeding if the temp may have been lower or higher???
Tank mates: Bolvian Ram, Cherry Shrimp, Amano Shrimp, x2 Pearl Gourami, 10 Black Neon Tetra, 1 Red Whip Lizard tail catfish, 3 x Corydoras, 2 neon blue gobies

Feeding; algae tablet daily that vanishes overnight and I generally always have a cucumber in the aquarium. fluval bug bites for everyone else.
 

jaypeecee

Member
Joined
21 Jan 2015
Messages
1,218
Location
Bracknell
Hi @becks
L90 X W50 X H45 Rimless

Tank age: Six months
Oto numbers: 9 or 10
Temperature: 22.5c, however with the heatwave, I saw temps of 25.5.
Lighting: Vivid RGB 2 at 30% my lighting cycle starts at 1600 until 2200
Heavy planted with quite a lot of weeping moss on the rocks
CO2 injection
EL dosing with a weekly water change: maybe the weekly water change spurred the breeding if the temp may have been lower or higher???
Tank mates: Bolvian Ram, Cherry Shrimp, Amano Shrimp, x2 Pearl Gourami, 10 Black Neon Tetra, 1 Red Whip Lizard tail catfish, 3 x Corydoras, 2 neon blue gobies

Feeding; algae tablet daily that vanishes overnight and I generally always have a cucumber in the aquarium. fluval bug bites for everyone else.
Thanks very much for the comprehensive list. Are you using tap water and is your water hard or soft? Would you happen to know the KH and GH? It's just interesting to have this information as I know of no other person who has been successful in having Otos spawn in their tank. Perhaps they will spawn again? I also see that you have a Red Lizard Whiptail Catfish. Fascinating the way they shuffle around, aren't they?

JPC
 

becks

Member
Joined
8 Jul 2018
Messages
91
Location
England
Hi @becks


Thanks very much for the comprehensive list. Are you using tap water and is your water hard or soft? Would you happen to know the KH and GH? It's just interesting to have this information as I know of no other person who has been successful in having Otos spawn in their tank. Perhaps they will spawn again? I also see that you have a Red Lizard Whiptail Catfish. Fascinating the way they shuffle around, aren't they?

JPC
unfortunately I don’t know what my kh or gh is as I’ve never tested. However my water is hard, I’m in Essex. I’m hoping they spawn again, I suspect they take refuge in the moss. As I have lots of large clumps of it and I use to see my Bolivian inspecting and pecking at the moss, maybe he saw baby fry?? I’ve also noticed in the last month or so my otos stayed within the plants a lot more rather than being out on the glass.

the red lizard is fantastic, I enjoy watching them and their colour is unique, mine is darkish deep red colour.
 

rebel

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Joined
4 Aug 2015
Messages
1,960
Whenever this happens, it's a great event!

Can we have a fts? Keen to see what it looks like?
 

danj-uk

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Joined
1 Jun 2020
Messages
9
Location
Pembrokeshire, Wales
Congrats becks! I posted in my journal last month as had something similar, although yours looks to be a bit older :)

We're also terrified doing water changes now, doing small changes to a 30l bucket and checking it 20 times haha
 
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