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Hello all,
I thought I might share this with you, as it seemed rather incredible to me: my otocinclus hoppei spawned! I'm had five of them for almost a year, they are in a very well planted tank, and I have no idea what suddenly stimulated them, as nothing changed in that tank ...

Anyway, I managed to take some pics; right now I can only see one, but I might find some more, if they decide to come out of their jungle :

Congrats!!!!!!!!

I have a million questions. But, I'm sure you do, too. What's the tank temperature, pH, etc? Were there any other fish in the tank that suddenly departed? A change in diet? Did a plant they hate die?

There are a dozen or so in the 75 gallon I have. What a special bunch.

Hi Bronzefry ,
Here is where they are (but this pic is a bit old, the plants have multiplied much more since then):



Here are the specifics:
20gallons; pH: 6.5; Temp: 78; KH: 1,12°d.
Fish:
10 rasboras heteromorpha;
3 corydoras aeneus
2 corydoras paleatus
1 corydoras punctatus
5 otocinclus hoppei.

Nothing changed in the tank, no fish departed, no plant died. I believe the eggs were so well hidden that none of the tankmates could find the eggs and then the fry ... there is a huge bunch of java moss on the driftwood (which I turned into the corys' cave; not visible on the pic, it's in the background), so maybe it helped