Removing Green Dust Algae from hardscape

[Aeropars]

Hello All,

I've got a light sprinkling of GDA on my hardscape which I assume came form not having CO2 for a week due to an atomizer incident! Anyhow, the CO2 is back on and being dissolved better than ever before so I'm hoping I can ramp it up to almost a yellow drop checker.

The unsightly green stuff on my hardscape is what I'm wondering about. do i need to take it our the tank and scrub it off or will it die off and the hardscape go back to normal?

Any advice appreciated.

Lee

 

[CeeJay]

Hi Lee

Unfortunately, the algae won't go away on it's own. Once it's triggered it feeds on the same stuff as your plants, so it will keep on growing 🙁
However all is not lost. Here are some options that I would try before disturbing the hardscape.
1. Manual removal with a toothbrush followed by huge water changes. Tedious I know 🙁
2. Nuke it with Excel, then when it dies, clean dead stuff off hardscape then huge water change
3. Blackout.

Just some ideas to get you going. Hope it's of use.