algae

[sbazain]

what causes that dark gold color looking dust on the substrate

 

[ReeferWarrant]

Silicates, are you using RODI water? Likely diatoms, a guess with the little amount of info given

 

[AlgaeBarn]

Agreed especially if a tank is newer its going to go through an "ugly stage". ~Shaun K.

 

[sbazain]

Silicates, are you using RODI water? Likely diatoms, a guess with the little amount of info given

Changing membrane today I think is been up for two years now

 

[sbazain]

Changing membrane today I think is been up for two years now

Added chaeto about two weeks ago

 

[ReeferWarrant]

@sbazain Id buy a cheap TDS meter, they cost like $10 and you can monitor if you need to change your filters or not. I bought mine on Amazon, well worth it.

 

[sbazain]

@sbazain Id buy a cheap TDS meter, they cost like $10 and you can monitor if you need to change your filters or not. I bought mine on Amazon, well worth it.

Arrived today also changing membrane

 

[sbazain]

just did test home ids is at 139 ppm r/o at 0003 ppm before changing the membrane wish I did today