Originally Posted by Ajones108
Hedgehog, a quick question while you're here then. :p Cories, I have 3 of them for now and as soon as my 30g is established I'm getting two more so they can live happily ever after together. I was wondering, what are the odds that they'll randomly spawn by themselves?
Peppered cories probably aren't too difficult to get to spawn if you actually want them to do it but I have some tips about what makes them spawn so you can avoid accidental spawnage. (Note I have C. aeneus which tend to be the easiest to spawn which is why you find them most often in pet stores. Cories spawn in the rainy seasons so the basic stimulus for them to spawn is a drop in water temperature. Generally this would happen when during a water change you pour in water that is colder than the tank temperature. This mimics the rain which drives the spawning instinct. Since my dad doesn't watch the temp of the water when he does changes while I'm at college generally we have spawning once a week. A lot of catfish forums say that to get them to spawn you should keep them in ratios of two males to one female. I have an even ratio and only two of them actual ever spawn so I don't know how true that statement is.
Some anecdotal spawn stories my cories are by a window and last night was chilly which I'm sure is why they spawned. One time we ran out of food so we bought them a new brand which they all refused to eat and when we finally got their preferred food again a week later they spawned the next day. My guess is they were so excited about the abundance of high protein food (my mom overfed because she said they must be super hungry) they thought that would be a good time to have babies. Definitely not how you want the spawn to go since they hadn't eaten in a week. Thankfully the missus got her protein back by munching on the eggies.