i didnt do anything special, feed them dry foods and sometimes feeder fish and earthworms, i noticed the females belly was getting larger a couple weeks ago, but never noticed she laid eggs, its a 125 gallon tank that does get some sunlight from a window, i have some rocks in one area of the tank, 1" or so round rocks grouped up in the middle to be kinda like a rocky bottom of a river, and the other side of the tank switches to clay type gravel thats real small, good for live plants, i think the pleco's have eatten the eggs which is normal for pleco's to do, but my algae issues are gone, once the tank clears up completely im going to switch to just one common pleco and hope it does a good cleanup job.
i did not do anything special for them to breed though, the male longears in my tanks have been in breeding colors for over a month now.
caught them all with a line and hook
matthew