arent' otos supposed to eat green algae?

Because mine did a great job on the brown stuff, but don't seem to be doing anything about the green algae. I understand about the green-spot algae, but the standard green type? ???

 

They'll eat it when they get hungry again.

 

So they eat yours?

 

They eat mine (other than the little spot stuff)

 

Yup, they eat mine. I had a lot in my tank when I first got my two otos, and they didn't touch any of it for a couple of days. Then one morning I looked in the tank and there wasn't a spot of green algae to be found, and the two of them were sitting on a rock looking fat and happy.

Unfortunately I lost one about 3 weeks ago. Haven't gotten around to replacing it yet. But the surviving one does quite well keeping the tank clean, and loves it when I drop in the occasional algae wafer.

 

that's strnge mine were only known for eatin green algae but never touched the brown
the brown is easier to clean off though

 

OK, thanks Joe, Sirdarksol & Sword. So they're definitely meant to eat it.

Yeah, brown is definitely way easier to wipe off. You don't even need to press hard. It just comes right off.