algae

I have this green algae covering the sand and the majority of the rock and need some help with ID. Photos taken around 1030pm after lights off. Tank background information: -80g AIO (upgraded from 40g and transferred fish, majority of water, and rock work. New livesand used) -Tank running...

I have been dealing with this brown hair algae for the longest time. I've even restarted my whole tank and its back! I currently have a small court jester goby, tuxedo urchin, skunk cleaner shrimp and about ten turbo snails and it seems there is no progress. I do weekly 15% water changes and...

this is in our 13.5 evo. Tank was cycled with clowns almost a year ago, once clowns died it became a home for snails and crabs. Since, we’ve added a few corals. We recently added a couple of corals and within a couple of weeks the tank is relentlessly covered in this sludgy green algae, it is...

Just bought a rhodactis. It also just arrived at the store - so this red leafy algae came with them. Can I keep it or should I remove it? 2. also a small question on rhodactis: this white colorless part - is not some infection or just loss of color from some factors during transportation ?

Does anyone know what are those pink “beads” on the algae?

Established tank, about 13 months old. Started getting orange film on just one rock. Film is hard to remove. What is this and how I get it under control.

Can someone identify this algae? It is unlike anything I have encountered thus far.

Hello I have a 30 gallon tank and I have algae. I recently had to quarantine my fish so my nitrates went down. My nitrates are less than 2 but definitely not 0. I don’t have a phosphate test kit, I just ordered one so it should come in soon. Anyways I’m keeping my tank fallow except for...

Hey everyone, new to the hobby here, this is my first time posting. I bought a used Innovative Marine 20 AIO peninsula, its only been running for 20 days and I’m going through the ugly stage. I noticed only the main rock is turning green, and the side rock still looks brand new. Is this caused...

For some reason I have these in many spots of my tank, some are very large and some are small. Whenever I suck it up with a baster it smells putrid. Does anyone know what it is?

Hey guys, lately i battled against GHA pretty badly and got it over with, using fluconazole after a while. Now, Ive had this tank for well over a year, and of course as every tank, stuff that we’ve never seen before appears and it could be bad or good lol. Anyways I’ll be attaching photos of...

I think my fish would be happier if his tank was decorated with algae instead of plastic, but I don't know if I can do it inmediately or have to wait for the tank to cycle :( I'm pretty new in taking care of plants and all the algae I've tried to inmerse in the tank died, so I'm thinking of...

My reef tank has been setup for 9 months and Im still battling this horrible red algae. No matter how much I remove it just keeps coming back. My tuxedo urchin ate so much at first but not any more. The algae has wiped out 2 zoanthid colonies, covering them up in this red slime and wiping them...

Hey everyone! I was wondering if anyone could help me with identifying what kind of algae this is? I was wondering if it’s hair or turf algae maybe something else? My tank I still new only two months old now

Hey guys, New to the forum and to salt water aquariums. I have a ~6 month old tank and I keep battling algae that does not seem to want to go away no matter what I do. It looks like GHA, but I'm now wondering if it could be something else. My nitrate is 10ppm and my phosphate is 0.05ppm, so I...

Hello friends, I could use some advice. I’m about a year into being a reefer, and my tank is slowly, inexorably, being taken over by some kind of algae (it’s very fine long strings, consistency of hair). I’ve tried not to freak out about it, but nothing I’ve done has helped. It’s starting to...

I’ve got a new 92 total system volume tank set up and cycling since April 2023. Water parameters have been holding pretty stable: Alk 7.5 CA ~450 Mg ~1360 Nitrates are negligible The tank seems pretty clean except for this weird fluffy light brown/white algae substance that is growing on...

I’m new to salt water tanks and forums so I apologize if I’m asking this for the 1000th time, set up this tank two weeks ago using live sand and rock. This yellow stuff showed up practically overnight. I just got the test strips but my alkalinity and hardness are too high, everything else is...

This is the back wall of my 120g (lights are off right now).I’m fairly new, only started a year and a half ago, and this tank has been up for just over a year. Whenever I preform a water change, my girlfriend says she doesn’t want me to scrape the back glass because she likes the look of the...

This white branching algae (almost helpfully displayed on the old frag plug) has popped up in my tank in a few places. I wasn't too concerned about it at first, but it seems to be irritating my zoas and ricordea. None of my CUC seem interested in eating it. Any idea what it is? TIA.

Tank is about 6-7 months old had my first Diatom bloom 3-4 months in and it went away. Shortly afterwards water got super cloudy and GHA bloom came overnight. Added a UV filter to my sump and beat the GHA. Now I have Diatoms covering the whole substrate surface... when I first setup the tank I...

USED for about 1 year. This is the PaxBellum ARID n24 Algae Reactor. This is the best algae reactor money can buy. An absolute beast. Also very visually attractive. I bought this used, but it worked too well! Decided to go a different route as a result. Specifications: Recommended Aquarium...

Hi everyone! Newbie to keeping tanks and about 7 months in to owning! I love it and my tank is doing great except for this pest of an algae problem. I do weekly water changes and clean up the algae on the sand but it keeps coming back. Could it be diatomes? I’ve included 2 photos one with blue...

I've been fighting a losing battle with hair algae for close to a year. The tank is a JBJ 29 Gallon nano. My brother had it setup for years and stopped taking care of it and algae took over. Hair, bubble, caulerpa, it turned into a refugium more than a tank. He finally broke it down and it sat...

Hi all, I recently have been trying to figure out a way to use an ultrasonic transducer to clean off year old coralline algae that is incredibly strong. Normal plastic scrapers don’t do the job and metal ones will cause scratches. Attached is a video of a test I did using a handheld dental...