algae

Hey guys any ideas if these blobs are feather dusters or something else? When I hit them with my scraper it appeared like it retracted. Almost looks like fuzzy jelly. Hard to describe but appear white/translucent. They reside on the live rock that is always shaded.

In the process of starting up a nano tank and I am ironing out my fish list. I would like an algae grazing fish, but because of the 25g nano I am limited to small fish. So do algae grazing blennies make a difference? Is there another fish for the job? I have also read that many blennies nip...

Hello i have a 40 gallon breeder tank with a 20 gallon sump approximatly 50 gallons total water volume, i use rodi water with tropic marin salt, at about .24-.25 salinity i do water changes about twice a month usually 10 gallons a water change i have a fleece roller, skimmer, return pump and a...

Specs are a 15g Nano reef waterbox filtration is a filter sock, and a protein skimmer that to be honest seems to work half the time. Automatic RODI water top off I don't have

Hey, this algae has coated my entire tank. I’ve a fake rock background on my tank which is also coated with it. I’ve no nitrate or nitrite or ammonia. I’ve changed my AI prime 26hd light to the “David saxby” schedule since, as It might be because I was running my lights too white? I’m wondering...

this is a blue glitter face Goni (aquacultured) that I received as a frag that was doing great until I accidentally clipped the very tip of a torch tentacle off with a tweezer - that tip proceeded to take off in the flow & landed directly on this at-the-time beautiful- blue glitter Goni. I acted...

Hi guys I'm having a problem with GHA and I'm trying to fix it with Flux Rx. I've dosed it Friday October 25, and I'm still not able to see any changes in the algae color or their root strength. Does anyone have any experience with this product and how it will work with GHA? On the back says...

Hello, I’ve finished setting up my sump for my 60 gallon breeder. I set this tank up a while ago using live ocean rock but I’m just now adding a sump and fish to it. The dimensions of the tank are 48.5" x 18.5"x 18". So far, I’ve only added a pair of clownfish and some soft coral and they’re...

Hello! I have this very interesting orange Algae (I think) growing around my rocks. Does anyone know what it is? Is it good? Bad? Should I be worried I recently had a drop on my salinity so maybe that is what caused it but don’t really know what it could be I have some imagines to help...

Back story. Ok so I have been reefing since 2016 and have had several tanks since then. I set up a folwer tank 155 with live rock from my lfs. I then set up another tank a reef tank 60 gallon using dry rock. No real issues so far. I then upgrade the fowler to the current 250 gallon and the reef...

This 15 gallon nano is 2 months old. I only had a pair of clowns for a little over a month and then I put in my Duncan and pipe organ because they looked unhappy in my other tank. The coral actually started improving surprisingly to me and all was seemingly well until last night. Last night, the...

Hello, I started in this hobby over a year and a half ago and this site along with many others have helped me navigate the reef tank world for all this time with major success and the occasional incident. Finally, I made an account days ago and was going to post a fun thread introducing myself...

Is this dynos or something else I cleaned the sand bed and the rocks from a huge agar bloom and now it’s doing this a few days later I’m getting a uv sterilizer in two days and I’m trying to get rid of it for my nem tank?

I keep second guessing myself. Thank you all very much for sharing your knowledge.

For the last month or two I’ve been having a constant battle with brown hair algae. I’ve reduced feedings, kept lights on for only 4-5 hours, dosed my supplements only 2-3 times a week (before I did it once every day) and picked as much as I can every water change but still, it’ll pop up after...

What is this? How do I fix? The gsp has not fully opened since I got it a few weeks ago.

Hi all - I have this purple-reddish algae covering all my rocks and filter equipment. I have read about cyanobacteria and coralline algae, but this algae does not seem to match either description. It spreads fast on rocks and hard surfaces but seems to stay away from my crushed coral substrate...

Hey can anyone ID this? I pretty sure one is GHA but not sure if the other is bryopsis or something else.

I have a new tank, around 3 months old with a handful of corals and 2 Clownfish. Within the last few weeks my Nitrates and Phosphates have both dropped to 0 (using Hanna checkers for both). These Dinos started showing up recently as well. I've been dosing NeoNitro and NeoPhos trying to get my...

is this Dinos or diatoms? It smothers my corals and comes back everyday.

Have a few clove polyps with this weird slime growing on them, had some back and fourth with a local seller saying its algae but i kight think its brown slime, need some help to identify it amd what i can do to remove it (if the photo isent clear its a lil green btw)

Having a hard time identifying what this is growing on my rock scape? Possible bubble algae? Any insight would be great.

Hello! Was curious if this was bubble algae that came with my Frogspawn frag I got today? If so, what’s the best way to get rid of it? If not then what could it be? The bubble like substance by my thumb. Dark in color. I didn’t dip my coral so maybe this was my first mistake..

Hi all, over the last couple days ive had this werid white algae form. its slimy to the touch and easy wipes off. My water peramiters are all within the good zones apart from a nitrite spike. it was zero now its around 2 - 4ppm it fluctuates over the last week. My bimedia just wasnt enough so...

I just cleaned a bunch of algae out of my sump and found these critters that look like tiny smooth (no hair or bristles that I can see) caterpillars. I’ve never seen these. In the photos they look flat, but they aren’t. They are nice and chunky. Any help on an ID is appreciated!