algae

New to the hobby but I've had my salt water aquarium with lots of live rock for 3 months now and i have something weird growing off the side of a rock. Looks like a coral but not sure at all. Could someone please help identify this for me?

I would like some help to try to figure what type of algae this is and how to defeat I have been battling this for the last month, but it has getting worse in the last week. My tank is 90 gallon with a sump, AquaUV 15 watt sterilizer on it, 8 months old. Phosphate for the last month .13 to .3 I...

Hello, was wondering if anyone knew why I had bubbles at the top of my tank and what I can do to fix this? My levels are good and my ATO water is good.

So at first I thought this stuff was green coralline algae but the more I looked into it I realized it’s probably not. Can anyone specify what exactly is this green stuff on my rocks?

Over the last few day ive started to notice some algae starting to grow on the rocks looks a little red/brown anyone got a ID

Anyone have experience with this stuff? About 3 days ago I noticed this white cobweb looking stuff growing on one area of a certain rock, since then it has spread to almost 1/3 of the rock. Started out real thin and loose, pretty unnoticeable, but all of a sudden it has started getting thicker...

Hi all. Tank has been setup for about 9mo now. This particular algae has been creeping in lately and it's getting more and more invasive. I keep a pretty lot nutrient tank. Not sure if this is dino and I should dose no3/po4 or what else. I'm upping my gravel siphoning and blowing off rocks but...

Hello everyone, I'm hoping you can all help me out. I've hit one of those points in the hobby where I've been extremely humbled by something occurring in my tank that I have no knowledge about. I feel helpless and I'm hoping you all may know something. At the end of November of last year I added...

Algae Anxiety

Hello, first of all, sorry for the low quality of pictures. If anyone has any idea what this may be (algae, Dino’s, cyano?). A little background, I have had this tank for nearly a year now, about 2 months in, this spider web looking stuff (hard to see in the photos but it is a dark brown/reddish...

Hey everyone, having this weird algae (or dinos???) outbreak and I was wondering if anybody could ID this for me, it’s long and wavy and grows very quick.

My bird’s nest appears to be rotting from the base and turning green. There also a spot where some weird hair is growing out of it. I did some research and it looks like it’s green boring algae but I’m not sure. Is fragging the only way to fix this?

Hello all, I recently was out of town for roughly a week and a half, and I had my 75gallon tank mostly automated, but just needed a friend to help me out by changing out filter floss and feeding my herbivores. Long story short, I came back to a tank full of algae. Turns out he didn't change...

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Hey everyone, I need some help and was hoping someone can help me out. I have a 10 gallon aqueon tank (from petco) and I intend to make that an anemone tank, my struggle is deciding which light is best, would a Kessil a80 be enough or should I go with a Kessil 160? I’m unsure if the Kessil a80...

I'm currently battling a GHA problem on my 45 AIO cube and am just completely at a loss. Willing to hear any and all advice and would prefer not to use Vibrant since I've read horror stories. I used Reef Flux to fix this in the past but would prefer not to run it again and just figure out where...

I thought I had identified this stuff as calothrix algae and have since dosed with chemi clean. I did a half dose originally and I don’t know if that was too weak but it seemed to do little to the problem I have. Phosphates and nitrates are reading 0 even though I have upped the feeding. I’ll...

I should start by saying, I do not have all the answers, in fact, I hardly have any. After combing the forums daily for weeks, I realized that there are hundreds(thousands?) of threads concerning GHA. Unfortunately many of these threads have either gone unanswered, or the answers varied greatly...

Hi, I need help IDing this weird macroalgae that started randomly growing in my tank after years of owning it and not having introduced anything in months. Also any ideas on how I can get rid of it (in addition to water changes and phosphate filters)? Thank you!

Hi Everyone, I bought an electus mushroom coral about 2 weeks ago, but lately I’ve been noticing it doesn’t look very good, it’s either extending looking closed up or folded up, I noticed most fish stores have them in little boxes or trays, separate from the others, is that something I must do...

It's an orangey brown color.

So a friend of mine gave this to me and I thought it’s a calcified kind that will look good on my tank. Now it’s on the rocks and so deep rooted that It pulls a 20 pound rock up in the air. tried Kent m magnesium and it died down a bit only to come back stronger. high lighting is used just to...

So in a previous discussion, I was told that sometimes leaving your glass alone rather than constantly cleaning it will clear it up. It did not work for me at first so I went back to cleaning daily, sometimes twice a day. this past week or so I have been busy with college finals, my birthday...

Hi, Newbie here. I setup my first saltwater tank 4month ago, I started to see this dark algae-like thing (please see photo and videos below). Can someone help me identify this and how to get rid of it? Thanks a lot PS: I brought the Vibrant cleaner, it makes the water clear but doesn’t seem...

Need some advice on id of this and any tips on getting rid of it it’s starting to get out of hand lol seems to be some type of plating algae??