How does this happen in 6 hours

Jake_the_reefer

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So I had a short shift today at work I was only gone for about 6 hours. The tank was perfectly clean and now that I am home it's so thick in algae you cant see through it no direct sun at all. Could it be my nitrates? The tank is newish. It has cycled rock and bioballs

20190703_193506.jpg
 

Mical

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It's probably a combination of things. Newer tanks go through the "uglies" as they cycle. I found lowering temp to 78-79 deg slows algae down also. After a recent move 1 of my heaters developed a mind of it's own and temp sailed up to 83 deg and the algae bloom would do that in 2-3 hrs.
 
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Jake_the_reefer

Jake_the_reefer

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It's probably a combination of things. Newer tanks go through the "uglies" as they cycle. I found lowering temp to 78-79 deg slows algae down also. After a recent move 1 of my heaters developed a mind of it's own and temp sailed up to 83 deg and the algae bloom would do that in 2-3 hrs.
Will extra water changes help?
 

lapin

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You have heated water, light and nutrients. Stuffs gonna grow. If it didnt, then I would be worried. Until something else can out compete the film algae or eats it off the glass, it will continue to grow. Actually looks kinda kewl.
 

LOVEROCK

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The tank uglies are due to phosphates leeching our from dry live rock right ? So if you bleach them and soak them in rodi water , in theory you can avoid the tank uglies ?
 

Phycodurus

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on newly set-up tanks, isn’t it good practice to keep the lights entirely off for several weeks to minimize the algae blooms?
 

SPR1968

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The problem you have could well be the ugly stage of a new tank, the picture isn’t clear but it looks like possibly diatoms on some of the rocks/sand maybe

It could also be high nutrient levels, especially if your not using 0 TDS RODI for water changes, which is the basic requirement for keeping a marine tank, especially if your thinking of corals. If you can’t make it yourself because of your situation, it may be worth buying ready made saltwater from a good LFS as a temporary fix.

Maybe post you water parameters including nitrate and phosphate so we can have a look
 
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ZaneTer

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If it were me and it was a new tank then I would cool the water to 78F and add some chaeto. I would let the chaeto do the heavy work removing most of the excess nutrients. It really doesn’t take long and it would help the pod population grow too.
 

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