coraline algae

Premium 10+ years established coraline covered live rock. Total pest and algae free. Many large pieces and Tonga Branch mixed in. 250+ pounds to choose from. Take it all for $350.

I thought it was coraline. The spots haven't grown or disappeared. Only more showed up. It's hard to get a better picture than this. They are literally like white peices of sand on the back of my tank. Thats it.

Hi there, My rocks have tiny red/brown "Freckles" they popped up almost all at once. It's a new system water in tank early October. Have you seen or know what these are?

I began my reef hobby nearly 6 months ago with a 13.5 Fluval EVO, and I've had great luck with it thus far (knocking on all the wood available). So far the only major problem I have encountered was a salinity spike that nearly killed my hammer (Beginner mistake- I relied on a cheap hydrometer)...

1.Is the first picture is of aiptasia or feather duster? 2. I am seeing brown/reddish film like layer on few few sand areas and also on the GSP. Is this cyano?

It doesn’t look like cyano, it doesn’t come off when i rub it vigorously it feels kind of soft like a sponge.

Hello reef2reef community , in the diatom stage of the cycle (hit one month). bringing an old tank from the dead with cycled live rock that ran in an established tank for roughly 5 years. Did my first water change after a couple diatom spots started creeping up. Diatoms are now gone but for...

Hoping I can get some advice on my procedure here. Any help is appreciated! I'm 60% done with my build, so I'm preparing ahead of time for the tank and it's bio filtration. I got some Polypropylene Tubs and put my aquascaped marco rock inside. I know PP isn't quite as good as HDPE because...

I recently started my new reef tank, after seeding it I was planning on dosing Coraline algae in a bottle as well as microbacter clean. If I add them at the same time will they work in conjunction together?

So I have this all over my pumps, back glass and overflow also my return nozzles. I was wondering if it is nuisance algae or Coraline. I see purple, redish and pink coraline but never green. I blow it and it doesn't come off. I have to scrape it off if I want it off.

Should I be concerned about this growth? Is there something I should introduce to curb the algae looking growth? I’m going to be implementing a refugium in the sump in a few weeks time

Hi everyone. Hope everyone’s safe during these bad times. So I had setup a tank during Covid to help my self cope up with the lockdown. But unfortunately I was let go by my company. So I cannot add any live stock currently. My tank is fully cycled for about a month now without lights. Do you...

Hey guys just wondering if this is Orange Coraline Algae? Or if it could be a Sponge of some sort?? Thanks!

Its usually a decent sign of quality water conditions, but I’ve never been a big fan of the back wall covered in coralline. Looks a kind of dirty. But at this point I can’t really bring myself to take the time and scrape it off. Someone scrape this crap off the tank walls for me lol How do...

The coraline has finally started popping up in my tank! I’m excited, BUT, unfortunately, it only appears to be growing in my chaeto reactor :eek:. I used two bottles of bottled coraline about a month ago, I figured it was overkill but I wanted the purple and pink strains, and to speed up the...

My tank makes coraline algae like you wouldn’t believe, in 8 months all my live rock is covered with thick plated sections growing upward and splotches that are spreading over each other, the back glass and overflow are covered... and I’m having to scrape it off the front/sides every 3-4 days...

Hello, I was wondering how long it takes for coraline algae to grow in a reef tank? Does it have to be introduced to the reef tank some how or does it just start growing? Some information on it is what I am looking for, and maybe some pictures of reef tanks that have it.