3 week old tank what is this

[Jhillreef]

About last week I had the dusty brown stuff on my rocks on the sand. Now I have like stringy algae it’s brown on my sand and a little bit on the rocks along with green on the rocks. Is this normal being a new tank or is this something I should be worried about what do I do?

 

[Jason mack]

The brown dust was diatoms .. and everything is normal all part of cycling a tank .. here’s a link for you too read
https://www.reef2reef.com/threads/cycling-an-aquarium.306554/

 

[HotRocks]

About last week I had the dusty brown stuff on my rocks on the sand. Now I have like stringy algae it’s brown on my sand and a little bit on the rocks along with green on the rocks. Is this normal being a new tank or is this something I should be worried about what do I do?

You are going to see a lot of different types of algae come and go as your tank cycles. For 60-90 days usually. It takes a lot of patience. I cant really see much in the pic, if you post a pic using all whites it may be helpful.

 

[Jason mack]

I’m guessing that you’ve started with live rock and sand seeing as you already have coral in after 3 weeks ..
can you give us a little more info about your tank and set up maybe ..
Parameters..
no2 nitrite
No3 nitrate
Po4 phosphate
Ammonia

 

[Jhillreef]

Yeah I used to live rock and live Sand yeah I use live rock and live sand .

It’s looks like it’s stringy read some of the parts on the rock have a little bubble on them like a clear air bubble. My guess is that it was dinoflagellates Which from what I read can make you break your tank down because you’re so hard to get rid of but if it’s normal being a new tank and that’s OK

 

[Jason mack]

Dino’s is not normal in a new tank although it happens .. it’s usually caused by your nitrate and phos being at 0 for a while .. which gives them a chance to takeover .
Do you have any test kits .. or results

 

[Jhillreef]

I’m at Zero for Phos. Nitate I’ll check now running GFO ALSO

 

[Jhillreef]

Nitrates are about 50 on Red Sea test

 

[Jhillreef]

Sorry 20 not 50

 

[Jason mack]

I’d stop with the gfo .. you shouldn’t really need gfo on a new tank with hardly any fish or corals ... it could just be cyno in your tank .. I would advise syphoning as much out as you can .. and add some bacteria dr Tim’s or something like that ..

 

[Jhillreef]

Should I slowly stop GFO or just stop cold?

 

[Jason mack]

Just stop, and continue too test your phos every couple of days a see where it’s at !
Had you had high phos ?? Is that why Your running gfo ??

 

[Jhillreef]

I just always ran it in all my previous tanks. Carbon and GFO dual BRS reactor

 

[Jhillreef]

Also, should I continue my weekly water changes of 10%?

 

[jason aung]

Do more flow and feed less . I used to have those for few weeks and now they all gone

 

[Jhillreef]

Do increase the flow to the areas that have it?

 

[jason aung]

Do increase the flow to the areas that have it?

In the whole tank . Increase the water change. I also used chemiclean as well

 

[Jhillreef]

What about vibrant?

 

[Jhillreef]

Jason what dr Tim’s should I add?

 

[HotRocks]

Jason what dr Tim’s should I add?

Live nitrifying bacteria.
Or Biospiria. Something like that.