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Cyano on rocks and blue algea in sand HELP

post #1 of 23
8/29/10 at 12:00pm
Thread Starter 

I have read that this is a bacteria not really algea. Will this harm my fish and corals? how did I get this? I have 3 PH with good flow 2x filtration, protien skimmer,in tank refugium have my lights on a timer 9hours. I feed once a day and rinse my food started using phos-zorb to lower phosphates. It is working well they are almost gone. what am I doing wrong?

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post #2 of 23
8/29/10 at 12:08pm

How often do you do water changes?   you need to siphon it out with a turkey baster...as soon as you see some....and UP the water changes

 

what are your tests reading???

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post #3 of 23
8/29/10 at 12:22pm
Thread Starter 

Changing water once a week and cleaning sand and rock when I change the water next day or 2 its back on the sand. every thing is reading good 0 except for nitrate they are at 20 to 40 have been fight that for awhile they go down then back up. Phos was high but the phos-zorb has it down now.

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post #4 of 23
8/29/10 at 12:35pm

How large of a w/c are you doing?

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post #5 of 23
8/29/10 at 12:37pm
Thread Starter 

5 Gallons it's a 55 gallon tank should I do more?

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post #6 of 23
8/29/10 at 12:41pm

You might want to up it some....since you are having an issue.....do 20%.....and if possible do it 2x a week

 

I see you say you have 3 powerheads, BUT how are they arranged......is this cyano all over, or just certain spots....test your flow and see if you have dead spots

 

how is your cuc?  

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post #7 of 23
8/29/10 at 12:55pm
Thread Starter 

It's every where not in spots. I tried moving the PH's all that did was make the corals mad. Cuc is 10 Tonga snails, 2 serpent stars, 6 hermit crabs, 5 turbo snails. I will up my water change and see if it helps but will that help if it's a bacteria as per what I read? Have to leave for awhile I'll be back later.

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post #8 of 23
8/29/10 at 1:09pm

Yeah...it will help, BUT we have to figure out the source

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post #9 of 23
8/29/10 at 3:19pm
Thread Starter 

The only thing different  is I bought some new corals and I have new lights. I was wondering if it could be from the new bulbs maybe to much light. or I have them on to long. I was afraid to leave them off to much because of my corals. Is 9 hours to long? Also it the fixture is has only 1 switch for all the light day light and actinics.

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post #10 of 23
8/29/10 at 3:34pm

What kind of lights?   Did you acclimate the tank to the lights?

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post #11 of 23
8/29/10 at 3:55pm
Thread Starter 

Know I didn't. I didn't Know I needed to since it had already had my lights from before on. The lights are T 5's.

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post #12 of 23
8/29/10 at 4:12pm

When you add more intense lighting....you should acclimate the tank to them

 

so now you have T5's....what did you have before....pcs?????

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post #13 of 23
8/29/10 at 4:18pm
Thread Starter 

yes

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post #14 of 23
8/29/10 at 4:24pm

How long have you had the new lights.....you might want to lessen the time they are on for now...and then slowly increase it after a little while

 

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post #15 of 23
8/29/10 at 4:28pm
Thread Starter 

About a month. what should I reduce it to?

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post #16 of 23
8/29/10 at 4:31pm

A month...and how long have you had the algae issue????

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post #17 of 23
8/29/10 at 4:36pm
Thread Starter 

On the live rock 2 months the sand a month.

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post #18 of 23
8/29/10 at 4:40pm

So you have had the algae issue before the lights then.....I would cut the time in half for now....BUT  I am not convinced that is the issue....

 

Better yet, what corals do you have?   Maybe you can just turn the lights out for a few days

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post #19 of 23
8/29/10 at 4:51pm
Thread Starter 

I have Frog Spawn, Hammer. Zoa's, Xenia's,Mushroom's, Kenya tree, small Ducan frag,a coral sold to me as a brain frag but I don't think it is and a Montipora cap. Also a Anenome.

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post #20 of 23
9/1/10 at 6:54am

Ok I just battled the cyano myself. I would suck it out of the tank but sure enough two days later it would be back. So I went to the LFS and they helped me out. I put a media bag filled with phos-lok in my sump and added a rainford goby. Now im not sure which one helped the most, im assuming the phos-lok did, but my cyano problem went away really quick. So give that a try.

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