How to clean hardscape from algae

I had a recent algae issue, nothing insane but lots of green algae.

One piece of my dragon rock has algae over the top of it, I was wondering what the best way to clean it out was. I can't necessarily take it out as I don't really want to disturb the hardscape I've set up.

Would I need to get something to eat the algae off or would I be able to slowly scrub it off the rock with a tooth brush while it's in the tank

 

Yeah you can scrub it with a toothbrush in the tank!

 

Take the piece out and scrub it with diluted hydrogen peroxide & a brush of some sort. Make sure to rinse thoroughly

 

He didnt want to take it out.

 

Petsmarts sells long handle tank maintenence brushes. They come in a three pack.

 

Petsmarts sells long handle tank maintenence brushes. They come in a three pack.

Interesting, I'll try it then. Thanks guys

 

Take it out. Cleaning it in the tank will just let loose all the algae into the water and right back on surfaces to grow again. Besides its always a good idea to get a peak under the hardscape as this is where rotted food and other debris will build up.

I take the piece out, soak in water with chlorine bleach . Not much scrubbing is required when you do this. It removes and kills the algae almost immediately.
I then rinse well or spray well with a hose sprayer then soak it again in water treated with "Prime".
This is a fool proof way to clean most any tank ornaments. And is entirely safe if you do the "Prime" treated water before you return the item or items back to the tank.
Easy, quick and effective.