Aquarium water is cloudy and red after adding Quartz sand to my tank

[Urchin boy]

Quartz sand will have no particular impact on any sort of green algae. Only diatoms, which are not usually a problem.

Good to know

 

[Solo McReefer]

It's sandbox sand

Ya

I would not use that

That stuff is for cats

Not coral

 

[Solo McReefer]

Quartz sand will have no particular impact on any sort of green algae. Only diatoms, which are not usually a problem.

Crysophates?

It's not green. It's puke brown

 

[GARRIGA]

Flocculant such as calcium carbonate would help remove that will filter floss from Walmart. Could try their felt which removes finer particles.