What are theses and what do i do????

[William Mumford]

I have a problem that I cant beat. I blacked out the tank and they receded but came back. I have to beat these it is so frustrating. I was going to dose peroxide but was wondering what suggestion the comunity has. I can get more pictures if needed they are all over. I also started this tank with dry rock. Thank you in advance for any help.

 

[William Mumford]

 

[Coastie Reefer]

Cyano. Chemiclean works.

 

[Frtdrmrose7]

What are your parameters? Age of tank?

 

[lapin]

If your tank is just 3 to 4 months old its just a phase. Your best bet is to siphon it out with water changes. Blow it off the rocks and sand. Get a power head to blow on it more. Turn your lights down a bit if you can. It should pass with more time as you get corals and stuff growing that will complete with it for nutrients.

 

[Auquanut]

If your tank is just 3 to 4 months old its just a phase. Your best bet is to siphon it out with water changes. Blow it off the rocks and sand. Get a power head to blow on it more. Turn your lights down a bit if you can. It should pass with more time as you get corals and stuff growing that will complete with it for nutrients.

I agree. I found that increased flow helped. Particularly when I had it on the sand bed. I run 5 power heads on wavemakers in the 125 and get some pretty crazy flow.

 

[NewGoby]

Dont use chemicals, there's no point your tank seems young - as others have posted its just a stage, get a net, some filterfloss / filterwool (wash before using) and a hose, siphon it out over the wool, toss the wool out when done & put the water back into the system

 

[Myst3ry_sea]

Cyano bacteria. Possible cause are:
1. Heavy feeding
2. Long lighting period
3. Phosphate or nitrate leaking from old live rock
4. New tank syndrome
5. TDS in Ro water too high
Solution: for my own tank and could work for you and I did not use chemiclean as the chemical work but cyano will come back later if you don’t know the cause. I use Cyanoclean, lower the light intensity, and make my own water

 

[Cell]

I use chemicals as an absolute last resort. Whenever I see algae of any sort becoming an issue or catching up, I reduce light and feedings while increasing manual removal and water changes. It may not be as quick or efficient as chemicals, but there's also none of the other risks or side effects that can occur using bottled fixes.