They are Aeneus corys, and i have coundted adleast 15 in there, but most are hiding, so cant be sure of number. I will tell you what I did and maybe it will work for you too. I first of all have very soft water, so i dont know if that helped. The outside temp went down to 60 the other morning and I forgot to plug in the new heater, so my tank temp went down to 72. I turned the heater on and slowly started raising the temp again. The following morning there was a clutch of eggs stuck to the side of the glass. I went to my fish cabinet and grabbed a glass canning jar that i use to clean my bettas. I put the glass jar in the tank under water, and scraped the eggs off the side of the tank with my fingernail. The eggs should not come out of the water, as i read somewhere that it will kill them. After i got all the sticky little eggs off the side of the tank and into the jar, i went hunting for where i could put them. I found a 1 gallon tank that i had, and cleaned it out and filled it with the tank water that the eggs had come out of. I then added a plant and a few pieces of gravel. I also added an air stone and put the eggs in, again keeping them submerged in water. 3 days later i woke to find they had hatched. I have been feeding mine brine shrimp pelletts and i also found it in a cube that is easily broken into small pieces. If i can give you any more help, please ask, i am not an expert, but i could tell you how things worked for me. Sandy