diatoms going, red spots showing up?

[canyon15]

These red spots are showing up in my LR. They are no larger than the diameter of a pencil eraser. Any ideas and what to do about it if it is bad?TIA!

 

[aznbob]

Do they come off easily? If so it's cyano.

 

[Feron]

they look like little blobs of playdough, or is it flat?
Flat then it's some sorta algae I guess..
If looks like blobs, then more then likely they are forminithingies....

hmm..

Link!

http://aquariumadvice.com/viewtopic.php?t=68002

 

[canyon15]

They are flat and are removed easily from brushing.

 

[Feron]

hmm..
slimey?

Heard someone say that slimey was cyano, but furry or fuzzy or some such was regular ole algae or something like that...

 

[canyon15]

No not slimey at all.

 

[Feron]

Could it be coraline growth?
Got a pic?

 

[canyon15]

give me a minute and i will post one.

 

[Fluff]

Sounds like coralline to me but yeah, a pic is a good idea.

 

[canyon15]

I don't have a photo editor so a can reduce the size. I can email it to you if that is alright?

 

[Fluff]

Hmm, does it blow away easily? Or is it easily removed by rubbing it with your finger? The pic came through fine.

 

[canyon15]

Oh man it showed up! Seeeeeeeet!

 

[Fluff]

lol But you didn't answer my questions. It looks like it could be cyano starting but it's hard to tell.

 

[canyon15]

Easily removed when rubbed.

 

[Fluff]

Then I'd say it's cyano. Coralline wouldn't just rub off. I'd begin doing extra water changes and test for phosphates.

 

[canyon15]

PO4 is .25 and is pwc the only cure? Should i leave my lights off?

 

[Fluff]

If you don't have any corals or light loving critters, you could shorten your light schedule but removing the PO4 is gonna be your best defense. Even after you get it to 0, do a few more since no all PO4 will show up in your test.