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the tiny dots of green are too small to tell exactly what they are.
Most likely just green hair algae (GHA).
The tank appears to be very new. The diatoms and algae are perfectly normal.
The diatoms will go away by themselves as the silicates they use are depleted.
The algae growth is dependent on the amount of phosphates in the system.
You can try to reduce the phosphates but don't get them too close to zero as this can other more serious problems,
Dino for example.
You can wait and see how much the algae is going to spread.
What is your tank maintenance?
 

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Shark..but a friendly one
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GHA is a natural part of reefs. We just try to keep it under control so it doesn't over run our corals. Really surprised to see it starting in such a young looking system. Does it look like 'strands of grass or more like 'slime'? Do you get a lot of sun light? And what kind of lights do you have? Wrong spectrum of lighting can bring on GHA.
Hack
 

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Discussion Starter · #6 ·
It looks more like patches at the moment but definitely the color of GHA. I’m monitoring it daily to see how it goes. I’ve done a 20% water change and added a bit of one n only cause i figured it can’t NOT help lol.They get about 12 hours of light using a nicrew reef light which i leave on the first setting.(blue and white light?)The tank is in a corner where there’s no natural light.
 

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Discussion Starter · #7 ·
the tiny dots of green are too small to tell exactly what they are.
Most likely just green hair algae (GHA).
The tank appears to be very new. The diatoms and algae are perfectly normal.
The diatoms will go away by themselves as the silicates they use are depleted.
The algae growth is dependent on the amount of phosphates in the system.
You can try to reduce the phosphates but don't get them too close to zero as this can other more serious problems,
Dino for example.
You can wait and see how much the algae is going to spread.
What is your tank maintenance?
Daily- just feeding with either freeze dried shrimp or pellets
Weekly- water change, glass scraping
This is about the middle of the second month of the tanks life and i have not cleaned the filter (figured I’d let it build up as much good stuff as possible, however wondering if that’s caused my algae bloom.)
 

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I would not use any mechanical filtration on a salt water tank except to "polish" the water after a water change.
Your live rock will house all of the biological filtration you need, and those filters will keep a lot of nutrients in the tank unless they are cleaned often and regularly.
 

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You can remove the physical media and use it for flow if needed.
Putting the sponges back on to polish the water after a change if needed.
Do you have other other power heads to create flow?
 

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Discussion Starter · #11 ·
I have just one but noticed how much less flow there is without the filter, so I’ll be buying an extra soon. Thanks for your help!!!
 
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