green algae

not sure if this is a hair algae. It seems to have leaves rather than just hairy. Also the second one is clear and just floats and moves with the current so it’s definitely not an animal or critter. But what is it? Any ideas? Thank you!

Hello everyone, I have a 75 gallon tank that has been set up for three going on four months now and I am currently battling some pretty nasty green hair algae. I completely understand. There is the ugly stage however it seems like the ugly stage has not given up once on my tank I constantly...

Hey everyone, Please see the attached videos… I need some assistance and guidance. I've been looking all over the internet and forums, but I can't figure out what this green thing is in my tank. At times, it looks like a fern shape, and at other times, it seems stringy. I initially thought it...

I was gifted a new drop in UV Sterilizer rated for a 120 gallon tank. My system is 65 gal display + a 40 gal breeder for a sump (~30 gal of water) + 40 gal breeder Refugium = 125-135 gallons total system. My water remains clear but I cannot seem to figure out my nitrate / phosphate / algae...

So this has been growing in my tank for about 4 months now, a deep green film, especially in areas of high light. It grows on the rocks, and the glass but never touches the sand. It also covers right over any corals on the rocks, it killed my bird's nest coral in a matter of weeks after getting...

Any advice as I feel like I’m fighting a loosing battle…. As you can see from the pictures I have a pretty bad GHA problem. It has been like this for a few months now (maybe longer) I’m picking out clumps weekly but it just keeps growing back, most of it is to small to grab with my fingers and...

Hi! I was hoping to get some help. I am having some growth in my tank. The first pictures are pre chemiclean treatment, the second set is after and I had the lights turned off. Any idea what’s going on? I treated with chemiclean and turned the lights off - after 24 hours this is what it looks...

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...

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...

I've had a huge buildup of green hair algae on the back glass of my tank. I scraped all of it off, and added some snails to keep it in check. I've noticed that the algae growth on my live rock and sand has gotten a lot worse, and the snails/hermit crabs don't seem to be helping. Any ideas how I...

What is this long green… thing? Is it algae , is it part of the anem?

Tank has been up 3 months or so. Not quite sure what this is. Was hopping it was a quick and easy id lol. It’s not hairy or anything just turning the rocks green I was fighting off brown string algae for about a week then this started to grow. Cuc doesn’t seem to eat it and lawnmower doesn’t...

For about two weeks now I've been struggling with what I believe to be some kind of green hair algae. It's not terribly long and is very difficult to remove manually. My turbo snail has been eating some, but it just grows right back. My tank has been running for 2 months. My nitrates are sitting...

For about two weeks now I've been struggling with what I believe to be some kind of green hair algae. It's not terribly long and is very difficult to remove manually. My turbo snail has been eating some, but it just grows right back. My tank has been running for 2 months. I tried using a...

Hi All, Can anyone confirm if this is Green Hair that's starting to grow on some of the rock (the lighter rock was dry and has been curing in buckets with the live pre-tank). Tanks is around 6 weeks old and all levels are OK. I have some 5 turbo and 5 neccarious snails alongside a Foxface and...

I need to clean a rock out of water since it's full of GHA and I estimate it will take about 30 minutes to scrape it all off, spray H2O2, let it sit, then rinse with SW. I also have a mushroom on this rock but since it's on the lower part I can keep it submerged. Also, is spraying H2O2 really...

I’d like to present my lovely urchin friend who likes to eat cyano and clean my frags :) Except he’s not eating the majority of the green algae. I’ve got nassarius and one margarita. What should I get to focus on green algae? 5 gallon that’s about 2 months old.

Generally, aquarium algae is harmful for the tank inhabitants, although some algae can be the food for some creatures. But, when we change the ideas and the usage, they can enhance the ornamental value of the aquarium, something like use the green algae to decorate the fish tank. The 10 gallons...

So i’ve seen plenty of different methods to use H.P. to kill GHA The one that works best for me in to apply 1ml of 3% H.P. onto the GHA on my rocks (since they’re too big and have too many corals to just be taken out) My question is: can i use the one found at drugstores? Or do i have to go...

I have a green hair algae problem meaning i have to constantly brush them off. Before my clownfish was fine with it. today he decided to attack whatever i tried cleaning the algae with. how am i supposed to do the maintenance if he doesn’t let me?? does anyone have any tips????

My tank has been up for almost 2 months. Went through a very short diatom phase, i still get some on the glass. Now there is some greening happening but there’s no algae coming off it. What could this be? Disc Mag 1320-1350 Calcium 440 Alkalinity 9 SG 1.0255 Phosphates 0.02 Nitrates 10 Temp...

Tank: 10 gallon AIO TL;DR neglected tank, what’s the best way to clean up so my pump quit working while I was out of town, took a while to notice, order new pump, install, etc. in the mean time, I’ve developed some hair algae, algae growth on the glass, and all kinds of algae along the glass of...

Hi. I have a Fluval Flex 123L which has been running for about 1 year now. I have always had a major green hair algae problem which I just put down to the fact the tank was new and going through the motions. I work offshore so I'm only able to do a water change once a month which is a 25%...

This is currently what my tank looks like Question 1) the brown algae -read a lot about it being good, but how much is to much? I also have green algae on my glass. Question 2) close up of rocks with micro bubbles - is this okay? Question 3) should I be running lights on a normal day/night...

Hi reef people! I'm very new to the hobby and could use some advice. So I have my 75 gal tank as seen in the pic. I have two oscarella clowns right now in there. -I'm doing once a month 20% water changes. - once a month fluval 307 filter cleaning - have the protein skimmer seen there - have...