9 - 3 = ?  
Input the result from the expression
Maximum attempts you can try: 10
 

Re: Dark Blanket...algae or diatoms?

Subject: Re: Dark Blanket...algae or diatoms?
by Fishlady on 2019/2/10 19:36:20

This is cyanobacteria or blue-green algae (also comes in red/purple). It's a photosynthesizing bacterium. Best way to eradicate it is to follow this guide:
https://www.thesprucepets.com/cyanobac ... -blue-green-algae-1378628