Whats this brown stuff all over sand?

roggy23

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How do I get rid of it? Just added uv yesterday

20210617_172036.jpg 20210617_172034.jpg 20210617_172028.jpg
 
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roggy23

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I had a bare bottom 90 gallon for 2 years all good..transfered all livestock and rocks 3 months ago to my new 180.
Added sand upon setup. Nitrates and phosphates near 0
 

BostonReefer300

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Agree it looks like diatoms. It's common with new sand. Check out the nuisance algae sticky thread to learn more. Basically, it'll go away over time. You can vacuum it up every couple days if you want as well.
 
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roggy23

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Agree it looks like diatoms. It's common with new sand. Check out the nuisance algae sticky thread to learn more. Basically, it'll go away over time. You can vacuum it up every couple days if you want as well.
Thanks
 

sergifed91

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I've had my tank setup for almost 2 years. I vacuuming it out every other day. I'm trying b uh bubble scrubbing now to see if it will help. Which I doubt. But my corals and fish are looking ssd's o much brighter since I started bubble scrubbing.
 

vetteguy53081

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Cyano. Cyano blooms typically start when water nutrient concentrations go haywire. Just like when you eat too much sugar and your waistline starts to bloom, the same happens in your tank when concentrations of phosphate, nitrate and other organic compounds are too high.
Some of the most common causes include:
- Protein skimmer which fills water with tiny air bubbles. As bubbles form from the reaction chamber, dissolved organic compound molecules stick to them. Foam forms at the surface of the water and is then transferred to a collection cup, where it rests as skimmate
- Overstocking / overfeeding, your aquarium with nutrients is often the culprit of a cyano bloom
- Adding live rock that isn’t completely cured which acts like a breeding ground for red slime algae
- If you don’t change your water with enough frequency, you’ll soon have a brightly colored red slime algae bloom. Regular water changes dilute nutrients that feed cyanobacteria and keeps your tank beautifully clear
- Using a water source with nitrates or phosphates is like rolling out the welcome mat for cyano. Tap water is an example
- Inadequate water flow, or movement, is a leading cause of cyano blooms. Slow moving water combined with excess dissolved nutrients is a recipe for pervasive red slime algae development

I recommend to reduce white light intensity or even turn them off for 5-7 days. Add liquid bacteria daily for a week during the day at 1.5ml per 10 gallons. Add Hydrogen peroxide at night at 1ml per 10 gallons. Add a pouch of chemipure Elite which will balance phos and nitrate and keep them in check.

After the week, add a few snails such as cerith, margarita, astrea and nassarius plus 6-8 blue leg hermits to take control.
 

JCM

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Cyano. Cyano blooms typically start when water nutrient concentrations go haywire. Just like when you eat too much sugar and your waistline starts to bloom, the same happens in your tank when concentrations of phosphate, nitrate and other organic compounds are too high.
Some of the most common causes include:
- Protein skimmer which fills water with tiny air bubbles. As bubbles form from the reaction chamber, dissolved organic compound molecules stick to them. Foam forms at the surface of the water and is then transferred to a collection cup, where it rests as skimmate
- Overstocking / overfeeding, your aquarium with nutrients is often the culprit of a cyano bloom
- Adding live rock that isn’t completely cured which acts like a breeding ground for red slime algae
- If you don’t change your water with enough frequency, you’ll soon have a brightly colored red slime algae bloom. Regular water changes dilute nutrients that feed cyanobacteria and keeps your tank beautifully clear
- Using a water source with nitrates or phosphates is like rolling out the welcome mat for cyano. Tap water is an example
- Inadequate water flow, or movement, is a leading cause of cyano blooms. Slow moving water combined with excess dissolved nutrients is a recipe for pervasive red slime algae development

I recommend to reduce white light intensity or even turn them off for 5-7 days. Add liquid bacteria daily for a week during the day at 1.5ml per 10 gallons. Add Hydrogen peroxide at night at 1ml per 10 gallons. Add a pouch of chemipure Elite which will balance phos and nitrate and keep them in check.

After the week, add a few snails such as cerith, margarita, astrea and nassarius plus 6-8 blue leg hermits to take control.

Cyano? I thought it looked like diatoms.
 

vetteguy53081

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Cyano? I thought it looked like diatoms.
There is diatoms present but to the right, an whole mat of cyano
 

blasterman

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I'm seeing diatoms.

UV will wreak them or they will go away on their own.
 

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