My smallest Opae tank, thriving for three years

[Corucia]

I wanted to share the smallest Opae tank that I’ve set up, which uses a diminutive lab reactor (5000ml / ~1.3 gallon). It’s been running for about three years and I originally established the ecosystem using water, algae, snails, amphipods, copepods and larval-stage Opae Ula from my other tanks, so it’s 100% homegrown. The population has bred a couple of generations of new Opae since it was set up, and I just noticed a new berried female so more babies are on the way!

[Aquarimax]

It is fun to see so much variety in an obviously successful, yet diminutive, setup.