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Hi!
I`m looking to my 70-liter tank easy Otoncinclus species. Is some that can easily sexed and breed? I have heard that Otos can be little tricky, so i want to ask. Temp. is 22-23 Celsius. I have thinked to put same that few little rasbora species and one Cory species. I havent never kept otos, so i maybe took those warnings little bit hard, but im intrested also to get little otos, so...

Macrospilus and Vittatus appear to the hardiest of the species. I've spawned both but only the Vittatus on a regular basis. I've only had one small Macro spawn and it was unsuccessfull.