did you just set-up the tank?
try feeding less and more water changes. and keep the light on less or none at all.

My tank has been running for over a year and i have calvus in it. I can not change more than 15% of water everyweek cause calvus does not like too much water change. I have some plants growing on my driftwood, so the light is on for 12 hours a day. The problem is brown algae covers my plants, rocks and woods. Any suggestion? thank you, friend.

get something to eat it

Why do you have driftwood with Calvus? Maybe if the water was at a proper PH the calvus could tolerate more frequent water changes.

thanks, goat_bou. I have driftwood there. when i changed 15% or more water (with water conditioner already), the calvus is not comfortable for a while. I have to remove the algae by my hand everyweek during water change. The algae did give me a little headache. I alread have a gold nugget to eat algae, but he does not eat much.

TAKE OUT.... the driftwood........ Immediately!
Driftwood...Out... Now...
Calvus No Likey DriftWOOD..
Calvus.... No Like.... Wood..

Get A Bristle Nose Pleco

Bristle...nose...pleco....

25% Every Week...
or
15% Bi Weekly...

Clean Algae regularly..
after a while it will stop growing back or grow back slowly...
Take out your plants..
and reduce your light use...
Less... Light...

Follow the instructions provided above
your Calvus.. will want to send me "thank you" cards by the new year.. i guarantee it.

Thank you, goat_boy. i will follow your instruction this christmas. My fishes thank you in advance.

Its what i do!
All the best!
Merry Christmas/ Happy Quanza/ Happy Holidays (which ever floats your boat)
& a happy new Year