ReefKeeper666
Active Member
My 8 gallon Nano reef is 2 months old. Cycled for one month no fish and now has been about 1 month with 2 fish in it. Is the green stuff on the rock and sand a good sign?
Is this a good sign? New to Nano reefs.
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ReefBridge
Active Member
2 months out... I wouldn’t surprised if it’s Diatoms. Is it brown under white light or still green?
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ReefKeeper666
Active Member
Green under both lights
ReefBridge
Active Member
Huh. I would say it’s algae, but I wouldn’t expect it to grow on the sand like that at 2 months. Does it come off if you rub it gently?
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ReefKeeper666
Active Member
Yes it does
ReefBridge
Active Member
Green Rock Turning Green
I started my tank with dry rock , now the tank is cycled with fish and ready to add coral but my rocks turned and are turning more green how can I prevent this ?
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It looks normal. I’ve never had it go bright green, but it’s referenced in other threads. As long as it doesn’t take over everything, you probably don’t need to worry.
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ReefKeeper666
Active Member
So I’m on the right track? I though the alge being on the rock is a good thing.Green Rock Turning Green
I started my tank with dry rock , now the tank is cycled with fish and ready to add coral but my rocks turned and are turning more green how can I prevent this ?
It looks normal. I’ve never had it go bright green, but it’s referenced in other threads. As long as it doesn’t take over everything, you probably don’t need to worry.
ReefBridge
Active Member
Algae is a good thing and you’re on the right track. Typically you get some diatoms, which rub off really easily as the silicates from the rock are absorbed. Then you’ll start getting purple coralline algae when your tank is established.
CrystallConrad
Community Member
Time to get a clean up crew ! Throw some snails and a sand sifting star fish in there 
it will help clear that up.
it will help clear that up.
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