Marimo is a moss ball, right? Although my amanos keep my tanks algae-free, I don't want to keep buying them. How many marimo balls are needed per 10 gallons?
Yep, moss ball, which is a misnomer. It actually IS algae.
I have no idea how many per 10; it probably has a lot to do with nutrient load and light.
And the size of the ball...
