i was planning to start breeding panchax killi fish.
they spawn at a young age, grow very fast and are amuzing fish.
Turned out a bit to amazing, for i grew very attached to them. They are like little pikes and behave in the same way.
Here's a lil' article i wrote about them:
www.oscarfishlover.com/oscar-fish-advice...hax-killi-fish#56927
maybe that could be an idea, if these mosquito fish are available where you live.
They have a very fast digestive system, and are one of few fish that can eat several meals a day, and only thrive on that. that's what helps their growthrate skyrocket through the roof!