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Need Id and Idea how to get rid of this stuff!


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I'm getting some kind of algae all over my sand. No matter what i do helps. I'm using RO water from LFS and tried the stuff from Walmart's water ro fill station thinking it might be the water. Still no help. I am running a octopus skimmer on my tank and pulls some good stuff out every 3 days. I feed my fish about every other day. I have tried doing multiple water changes. I have even sucked the stuff out and keeps coming back. It only grows on the sand.

I have a 29 Gallon

130 Watt Current USA light on for 10 hours a day.

Will post water prems in about 30 mins.

What can i do to get rid of this stuff once and for all?





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Do not get a sand sifting starfish. It will consume all of the beneficial flora and fauna in your sand bed then eventually die from lack of food.


You may need some more sand sifters like Nassarius, Cerith and Florida Fighting conchs.


Still could be your water containing phosphates. I would check the water for phosphates and nitrates prior to mixing it with salt.


Here are a few recommendations for getting rid of cyano bacteria. Not a quick fix, it will take some time but it will be beaten.


Red Slime (Cyano Bacteria)

Cyano grows on top of nutrient rich areas of low flow. There are a number of things that need to be correct or possibly corrected to combat this without the use of chemical additives. The biggest thing is to get rid of the extra nutrients.

1. Evaluate your feeding. If you are feeding more than can be eaten in about 1-2 minutes it is too much and the remainder of it is falling to the rock and sand and becoming nutrient.

2. Evaluate your flow. If you have areas in the tank where there is little to no flow this can be corrected by adding power heads or repositioning the ones you already have. You don’t need to create sand storms just have water moving over the area to keep detritus suspended in the water column for removal by your filter – skimmer.

3. Evaluate your water changes. The solution to pollution is dilution! You want to continually remove unneeded nutrients as well as replace those things that are used by the system. 10% weekly is a good change schedule. Some do 20% every other week and some vary the schedule from there, but a good start is 10% per week.

4. Evaluate your lighting schedule. About 10 hours of daylight is all that is needed.

5. If you have a Cyano outbreak do the above 4 items and:

a. At water change time siphon off the Cyano first. It will come up easily almost like a blanket.

b. After siphoning stir the affected areas a little to suspend any detritus for the water change and filtering - skimming removal.

c. Use a turkey baster on the rock work now and at every water change in the future to again suspend the detritus for removal by the water change and your filtering – skimming.


Keeping nutrient levels low to non-existent will help to avoid Cyano outbreaks and any algae outbreaks as well as keep your tank and you happy happy.


Hope that helps.

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Get chemi-pure elite + purigen, it should clear up in a few weeks. Make sure you siphon the slime layer in your next water change to expedite the process, with the 2 products.

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That is not cyano. Cyano is latin. Cyan= a blue/green algae. Diatoms. Wait it out, get more CUC


cyano can also be maroon/crimson...but yeah it's definitely diatoms.

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That is not cyano. Cyano is latin. Cyan= a blue/green algae. Diatoms. Wait it out, get more CUC



"Despite their name different species can be red brown or yellow; blooms (dense masses on the surface of a body of water) of a red species are said to have given the Red Sea its name. "

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