When they hit 3" and have been conditioned (fattened up after you've had them a while), they should be reasonably sexable. Yours look a little small yet, though some males are probably apparent. You'll be looking for spines on the end of the pectoral fins (larger in males), interopocular odentodes (cheek spines, longer and thicker in males), and overall body shape (females wider across the belly/ventral area). Females will also be overall smaller, but fatter.
Your pictures aren't sufficient, either...sorry. You'll need to get a picture of each fish directly from above. Having them at an angle will distort the view of the body and head shape.
It does look like there is a mix of sexes, however, just based on differing head shapes. So you might be on the right track. Just need to put some time and weight on them.
I need a male, so if you find out you have two extras, just send them to me. I some how ended up with five, now very fat females raring to go.
Your L260 appear to be adults just needing some time to become conditioned.
no success yet - I'm just growing them out and fattening them up. They're in with groups of 201's and 333's so it's a bit crowded for breeding. Barbie (one of the moderators on this forum) has had success breeding them, however.
I feed live blackworms about once a week, frozen bloodworms, mysis shrimp, and brine shrimp. The staple diet that they get daily is New Life Spectrum pellets (1mm cichlid formula). I've found this to be a great food for plecos as it has great nutrition and does not cause any intestinal problems for herbivorous fish. It takes about a week of mixing with frozen worms for the plecos to fully accept the pellets, but then they're hooked. The theraa+ formula has garlic in it, and that's a good food, too.
I feed zuccini once in a while, but my hypancistrus generally only eat the skin.
Can't go wrong with frozen blodworms, though. All fish seem to LOVE them!
Once you condition them for spawning, it will be easy to tell the females from the males, IME. I use frozen daphnia, mysis, cyclopeeze, flake, tetra color bits, and mostly NLS grow formula (my fish refuse point blank to eat the thera formula!), along with hikari sinking and algae wafers, and occasionally live blackworms. The most important ingredient for conditioning, IMO, is clean, warm water. I keep them at 84 degrees or so for conditioning and it definitely stimulates their appetite enough to get them to eat more frequently.
You'll need a nice snug cave for the male, and enough caves for the spares to hang out in and try to convince women they're available. I then usually lay driftwood across the tops of the caves for the females to use to hang out in while they watch the males. You should be within a month or two of having them conditioned enough for spawning.
I think I mentioned in another thread, your tap water is probably not even hard enough to serve as a dry season, so you're most likely going to have to have them in a tank big enough you can skip a few water changes to cause a build up of TDS in order to give them that drastic change in parameters that stimulates them to spawn. I seem to be physically unable to not do water changes on tanks, so hopefully you'll have better luck watching the water get murkier ;).
mostly NLS grow formula (my fish refuse point blank to eat the thera formula!)
I have just recently noticed this as well with my A.claro juveniles...not a total refusal but they definitely prefer the grow for some reason...(over the 1mm Cichlid formula in my case)I do not know if it is the size or the taste...I always thought they were almost the same product
Barbi mentioned the difficuly to simulate a dry season. I have a PH of 8.7 and a TDS of 34 right out of the tap. My tanks TDS is around 67 prior to weekly water changes. So initiating a difference in hardness would be rather difficult.
Thanks for the suggestion on foods and the increase in temperature. That I will start.
Now I would like to toot Barbi's horn .
For those who are interested in breeding L260s (or similiars) she has a CotM (September 2007) article that covers her breeding process. But another great source of reading is the thread she initiated http://www.planetcatfish.com/forum/viewtopic.php?t=5334 4 years ago. It more than suppliments the CotM article as it is a timeline in the breeding and rearing process complete with photos. It even has a photo of her 10 gallon breeding setup (she now recommends bigger).
Barbi, hope I'm not embarrasing you but thanks for all your help it is really appreciated .
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but thanks for all your help it is really appreciated 
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