Cyanobacteria between glass and substrate

[nijat11]

Hello everyone!
I get cyanobacteria between substrate and glass. I tried to use Ease Blue Exit and tape on the glass for couple of week and it gone.
But after removing the tape it returned again. Any advises how to get read it permanently ?
Cleaning it every week is a bit hard, because tank is high and big.

 

[Wookii]

It's perfectly normal for anyone with a sand substrate in particular - the lack of DO combined with access to light makes it perfect for a bit of cyno to propagate. As long as its staying below the surface, I wouldn't worry about it, you'll never get rid of it unless you switch to a more open substrate at the front or keep it permanently covered.

 

[tam]

You can try disturbing the front edge everytime you water change. Just becareful to avoid scratching the glass.

 

[Grjones]

Yep I separate the soil from the glass with a card. It does work but pulls the roots of the foreground plants and does disturb them I find

 

[nijat11]

Update.
So somehow Malaysian Snail got into the aquarium, multiplied a lot and helped to removed that cyanobacteria