Cyano Algae

[NewbieReefer11]

Hi everyone I have a cyano Algae problem that seems to be getting worse my system is about 500 litres and I have been doing 15 to 30% water changes each week. I believe one thing that may have caused the problem is for a few months I was using water from my lfs due to not having a big enough mixing station at the time. There water was almost always above 10 tds but generally under 50 or so. I have now setup my mixing station with an rodi filter. I have so far replaced about 75 to 80% of the tank with rodi saltwater. However the cyano is still getting progressively worse. I will try and get some better pics 2 night.


Another cause could have been a dead chromis that was getting bullied and is now missing. However he was only the size of a Australian 50 cent coin.

 

[rayn]

Try turning up the flow or rearrange the flow patterns. I battled it in my frag tank, even without sand, and it all came down to flow for me.

 

[NewbieReefer11]

Try turning up the flow or rearrange the flow patterns. I battled it in my frag tank, even without sand, and it all came down to flow for me.

My issue is if I turn up the flow my sand goes everywhere. And I have no power heads close to the ground. My hammers also start losing polyps when I turn the flow up

 

[NewbieReefer11]

Try turning up the flow or rearrange the flow patterns. I battled it in my frag tank, even without sand, and it all came down to flow for me.

So sorry if that sounded a bit rude was kinda ticked at my boss when I wrote it

 

[Harriswill1987]

I would be interested in seeing what your parameters are in your tank. Whats your Salinity, Alk, Calcium, Mag, Phosphate, and Nitrates? Also are you having a hard time keeping your calcium levels elevated? Are you dosing more calcium than you think you should be?

 

[lapin]

Cyano is bacteria and not algae. It needs light to grow. It does not like to live in the current and tends to be found in stagnant places. It can make its own food where algae can not. The best ways to combat it are more flow, less light, manually siphon it out.
Beware of chemical solutions. They maybe safe for your fish and coral but they can alter your tanks bacteria populations in ways that migth cause other problems.