I am from the UK, I was also lucky enough today to get 9 monte's! They haven't sexed yet, but i divided them into 3 sets of 3, i took the larger and paired it with the 2 smallest, and then repeated, so the 3 largest are housed with the 6 smallest.
Hopefully I'll get a male in each tank!
If anyone in UK wants some, the guy I got them from has 30 left after I bought my 9. He has confirmed 6 breeding sets and the ones in my pics are from him.
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View attachment 1545099