I would add to the filter media an adequate amount of fermented barley straw.
It works well against algae, without any harm to plants and fish.
You'll love it!

Hi, I'm from Venice, Italy.
AnfibioRana

Same when using Firefox.

I am convinced myself, but I don't think it can be a practice of short duration.
Meanwhile, the fisherman who freed the huge catfish was fined, because Italian law holds that alien predators are not released.
Ciao!
AnfibioRana

I'm Italian and I'm a freshwater fisherman. My parents lived in two nearby villages (in the province of Mantua), located on the right bank of the Po river, the largest river in Italy. I can confirm that the catfish Silurus has already heavily damaged all the native species of the great river ...

Hello everyone! First, I apologize for my poor English (be patient)... To introduce myself, suffice to say that I've always been a stubborn freshwater aquarist (strictly Italian style), for over half a century. Currently, I'm "dreaming" only of biotope tanks, reserved for Corys and Otos... I am sure ...