algae

[Greatsoccerman]

I have an 80 gallon saltwater tank set up that has been running for about 3 months including the cycling process. I moved over about 40 lbs of rock from the old 20 gallon tank and the fish and some of the water. I added another 40 lbs rock that was dead in kie tank and another 20 in the filter. Now all my rock has this green slimmy algae all over it. My water conditions are great. No nh4 or no3. Lights stay on for nine hours. Is this algae just natural to a new set up like this and if so how long does it last?

 

[Greatsoccerman]

Hello?

 

[Kio707]

Looks like you had an algae bloom... If your tank is fully cycled, get a cuc from reefcleaners.org. It'll pass...

 

[Greatsoccerman]

But how can the algae grow with out nitrate? Isn't it supposed to die off? I scrape it off the glass and scrubbed some of the rocks but it just grows back. Is it because my tank is not fully "matured"?

 

[Crystal A]

Nitrates arnt the only thing to feed algae. Have ya checked your phosphates? It looks like cyano algae growing and it feed on phosphate.

 

[Sniperhank]

An algae bloom always happens to a tank in the beginning. But you need to do something about it. You either have nitrates or phosphates feeding the bloom. Since you are a fowlr system cut the lights off for awhile. Do water changes w/ ro/di water. If you have a ro/di unit change your filters or use store bought til then. Prior to water changes scrub at the algae with a toothbrush.

 

[Greatsoccerman]

Ok. But this never happened in my 20 gallon.

 

[spoonman]

NitrAtes can appear to be 0ppm because the algae is consuming it all.