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6" DSB in Refugium

WLSS

By WLSS,
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WLSS Newbie

WLSS

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Hi,

My friend has a 6" dsb in his refugium, with macroalgae "planted" on it. After 7months, only the top 0.5" has turned abit brownish. The remaining 5.5" remains "pure and clean". Is this normal while waiting for the DSB to mature (which I understand will take at least 1 year)? There are only a few turbo snails in the refugium. Water from main tank passes through mechnical filtration and protein skimmer before reaching the refugium.

Fyi, the sand are of grade 0 (90%) and 1.

Anyone can advise?

Thanks,

:peace:

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Tanzy Newbie

Tanzy

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The brownish bit is probably just cyano or diatoms, nothing to indicate that the DSB is working. Your nitrate levels will determine if the DSB is working properly. If you are wondering whether if your DSB will turn black, then don't worry, it's only a matter of time.

post-36-1093875548.jpg

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Tanzy Newbie

Tanzy

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Black doesn't mean bad. It just means hydrogen sulphide is being produced due to anaerobic conditions. Just don't disturb the layer and release the hydrogen sulphide because it is toxic in large quantities.

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Melvyn Tan Newbie

Melvyn Tan

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Then how? just leave it there? someday, it'll be disturbed one way of the other and viola hydrogen sulphide will be released.

My Beautiful ANGEL - Matsushima Nanako

Equipment List for 4x2x2 Tank & 3x1.5x1.5 Sump

Hagen 802 x 2, Tunze 6060, Arcadia T5 (54W x 8), Eheim 1260 (return) Eheim 1250 (Chiller), Aquabee 300 x 2 (Feed)

H&S 150-F2001 (850l Skimmer), H&S A110-F2000 (400l Skimmer), H&S 110-F1000 (1000l Sulphur/Nitrate Filter), H&S 150-F2000IA (800l Calcium Reactor)

Coralife 3X (UV Steriliser), I-Aquatic IF 312 (Fluidised Reactor), Kent Kalk Delivery, Resun CL650, Pinpoint ORP & PH Meters & Wireless Thermometer

4x2x2 Tank Thread

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blueheaven Newbie

blueheaven

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make sure you disconnect your sump when that day comes...

But if you tame me, we shall need each other.

To me, you will be unique in all the world.

To you, I shall be unique in all the world...

You become responsible, forever, for what you have tamed.

-Antoine de Saint-Exupery

Keep our hobby sustainable, participate in fragging NOW

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