Algae

[Becandsem]

Folks I have Redsea saltwater tank (75 gallon). All of my parameters are good. I have a good skimmer. I do 10 gallon water change every week, clean up the sand bed but this think is keep coming. My corals and fish are happy. I cut my feeding to every other day. I tried three day blackout. I tried that red algae gone chemical but I can’t get rid of this algae. By Friday the whole sand bed is full of it. I have been running even my lights very short for the last month to see if I can eliminate. Any help idea ?

 

[Webslinger]

common, Ugly algae stages lasts about a year

 

[Bo.]

How old is the tank?
What exactly are the parameters?
Is your source water RODI, if so how old are your membranes and what is your tds?
What food do you feed?
What lighting do you have on the tank, and what is your light cycle?

I wouldn't be doing chemical fixes right now, and that just looks like normal diatomaceous, nothing major.

 

[ameerun]

I'm inclined to say I have the same in my Red Sea Max C-130. Parts of the sand color brown, when I clean the sand (vacuum) it's gone but the next day it's there again ... would love to get rid of it too...

 

[Becandsem]

Tank is 7 months old.
Parameters- I will get them to you. I wrote them down.
tds -0 I check every time I make new RoDI water

I feed them frozen shrimp (cube) once a week. Every other day cobalt ultra pellet

stock light I believe they called two hydra32s. I was running the lights only 5 hours thinking it was creating this red algae.

 

[Becandsem]

Also I have jebao ow-25 that runs in low and then cheap 1300gph from amazon that runs constantly.