PlanetCatfish.com

..... towards dwarf corys??
In the pygmaeus sensitive thread I stated that my hastatus disappeared one by one. After having a closer look this evening I found out that both habrosus and pygmaeus seemed to be afraid of the (former) dwarf Botias. And indeed, their curiousity seems a little over enthousiastic and if I'm not mistaken they also tried to nip the Corys.
Anyone who can confirm this? They've been together for a week now.

I have 6 sids in a 50 gal high tech planted tank with panda, sterbai and paleatus corys. They have been together for the past 10 months or so and I have witnessed no problems.

While Y.sidthimunki is a generally peaceful fish, I would not put it past a group worrying(for lack of better word) another much less defenseless fish to death.
The bottom "belongs" to the loaches and they have the will and armament to back it up, should they want to.
I regard them highly as a community fish but I am inclined to agree with you that the sidthimunki's are responsible for your dwarf Corydoras' deaths. I don't think they would take on a larger species of Corydoras as effectively. I would rather err on the safe side and keep your dwarf Corydoras apart from these loaches. They essentially fill the same ecological niche so if you want some bottom cleaners, Y. sidthimunki are great fish for that purpose. Here, where live Black Worms are easily purchased, these loaches are more effective than Corydoras when it comes to rooting out and eating any escaped worms from the substrate.

If you could now just figure out how to naturally breed Y. sidthimunki you would have a little money machine. I believe they are either considered an endangered species or extinct in Thailand and that those we now see are being collected in Cambodia, Laos or bred artificially using hormone injections and "dry stripping and fertilization" the breeding stock of eggs and milt.

Apart from agression from the sidthimunckey, it could also be they seek company.

A Worton pointed out, this is a very expensive species, but also one which likes the be kept in very large schools - 10 is too few, I'm afraid.

It could be the Corydoras just can't stand this behaviour

Y. sidthimunki is probably extinct in nature; all sold specimens are artificially bred in captivity. The relentless and accelerating rate of habitat destruction in south east asia means that fish species are dropping like flies, Y. sidthimunki and the worlds smallest fish, Paedocypris progenetica, are just some of the more famous casualties.
At least sidthimunki, like the bicolor shark, Epalzeorhynchos bicolor, is still maintained in captivity.

Hey,

they have been spawned in captivity - very similar to corydoras and plecos way - waterchange with drop of conductivity and temperature.

http://www.loaches.com/articles/yasuhik ... ng-success

and original thread:
http://forums.loaches.com/viewtopic.php?t=11197

and kubotai spawning thread:

http://forums.loaches.com/viewtopic.php?t=14594