Sold as a juvenile, but grows to 30 cm. The biggest load in this game, so first ask whether your filtration and water changes can handle it. Anything under 10 cm is food.
The largest group where none died in 90 days. Tap water · black sand · bacteria starter on day 1 · fish added on day 10 · 25% weekly water changes.
They fight their own kind, so keep only one per tank.
Run a 120 cm standard tank with 1 yourself →The same rules the engine uses for tankmates.
No eating or bullying either way, with plenty of overlap in temperature and pH. Fish that swim at a different level come first.
The numbers on this page come from the Water Kiwoogi simulator model; real tanks can differ.