brown algae

Ive got a brown/green/red slime on my sandbed. Its only on the sandbed, the rocks are completely clear of it. It does seem to disappear or get a lot less visible when the lights go out at night. It clumps together on the sandbed like a mat. It doesnt blow off like dust. I didnt used to clean...

Hi everyone, basicly my tanks been running for about 3 months now so im aware its still very early on. Im looking at this browny stuff thats growing all over everything in my tank ive siphoned it off the rocks every week on the water change and siphoned areas of the sand weekly but it just comes...

I only have this brown bubbly nuisance (Dino’s?) on these few frags currently (I have two racks and only one has this on it which seems to have spread to multiple neighboring frags on that rack). I’m wondering if I should remove the affected frags to my QT to treat with hydrogen peroxide or...

My tank is five months old. I have already been through the diatom phase and now have this brown hairy algae starting to grow on the rock work. It will not blow off with a turkey baster. I have scrubbed it a few times with a soft bristle toothbrush, but it continues to come back. It also does...

Hi Everyone, I have a new waterbox system which is only about 2 months old. I have started the system with dry rock and dry sand. The tank is fully cycles and following are my parameters: Nitrate: 64.3ppm Phosphates: 0.135ppm PH: 8.25 Salinity: 34.8ppt In the past week I have been noticing...

Hello all! It’s been a while since being on here! So I’m still running my 20 gal. tall and recently been dealing with a brown thin hair algae. Wanted to get some advice to help eliminate it. So tank has been up for 2 years. Running a AC 110 HOB with a little floss, half the sponge, some rubble...

At the beginning of this month I moved back to my parent’s house after a breakup. Before the move I had pretty much no algae in my tank but about a week afterwards I started getting brown hair algae all over my rocks and now it’s getting out of hand. Nitrates and phosphates are both at 0 and I...

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)

Hello! I need some opinions for a new type of algae that appears in my tank today. First thing, I’ve had some diatmos recently but they go away and come back every now and then which is ok. But today when I went to check the tank I saw that there was something new. Perhaps my diatmos evolved...

I have brown algae growing on some of my corals - red monti and a soft coral. I can blow some off with a turkey baster but some are pretty stubborn. I tried brushing them off and it didn’t really work. ID please and any suggestions on how to get rid of them? I don’t think they are dinos and...

Hello reefers! I am new to this hobby. My tank is around four months old. I am facing this brown algae situation where the algae blooms at day and disappears at night. This situation arise from the beginning of this month. I am not sure if its diatom or dino. Please note that My nitrates were...

Hi all I’ve recently cycled my reef and my water parameters are starting to settle I have been experiencing some brown algae on the surface of my tank and the substrate has been turning a brown colour only a day or so after cleaning I’ve read it could be diatoms but not quite sure if that’s the...

Hi all I’ve recently cycled my reef and my water parameters are starting to settle I have been experiencing some brown algae on the surface of my tank and the substrate has been turning a brown colour only a day or so after cleaning I’ve read it could be diatoms but not quite sure if that’s the...

Hi all, I have this brown stringy algae growing on my rocks and my sand. I’m having trouble determining if it’s just a brown stringy algae or dinos. As you can see it’s growing in and between corals, likely irritating them. I tested nutrients yesterday and Nitrates are 9 and phosphates are...

Hello! I have this weird brown algae growing on some of my corals. It looks like it could either be dinos or brown hair algae but it only grows on a few of my corals plugs and only a couple spots on my rockwork. The tank is about 5 months old. I run a protein skimmer just did a 20% water change...

Tank is approx 1.5 month old. waterbox cube 20 Floss > chemipure blue > poly filter pad. Video for attention. Dragon Thorn Turbo snail putting in work on my first brown ugly phase. I only clean the 3 sides.

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, I have a Tang and he's been in my tank for about 2 weeks now. He started getting discolored spots. I have done many google searches and can't seem to find a photo or description that exactly matches. I've seen that it could be ich, an infection or just from stress, so I thought I would just...

Hi all, I added some old dry rock a couple weeks ago and I started noticing a couple days ago a brown film on them. Today I can clearly see it is like a brown slime. They have some tiny micro bubbles starting to lift it so I can definitely see the slimey-ness. The rocks I added were some old...

Hello fellow reefers, I have what it looks a case of brown something. I believe is not Dino since I don’t see bobbles on the string and my parameters are Nitrates 11 , phosphate 0.18 alkalinity 11.3 and calcium 420. I know they are not the best. Any idea what is this and how to fix it

When i try to scrape it off it disperses like sand. Everything is turning brown, even the substrate and glass. I tried buying a phosphate test buy i could find it here so i’ll try and see if an aquarium store can perform the water tests. The ammonia is at 0.25ppm and salinity at 1024

So I’m new to this hobby , my tank is roughly 3 months old, besides having a big bacteria spike due to me over feeding *which I fixed with a HOB aquamaxx1.5 skimmer to assist my Fluval filter*, I haven’t had any other problems with the tank until now. 2 weeks ago I started noticing possibly...

I’ve set up a new 25g tank and I’m going through the dirty stage. Got like this brown algae first thought it was diatoms however when I turned my LED to a more higher whites I’ve noticed that the algae looks green? Is this still diatoms? Picture is algae under whites, looks brown under blues. ⬇️⬇️

It's all in the title. What brown macroalgae do you own? Please post pictures! Edit: Include those you have owned as well.

Hey another question, definitely have an emergency on my hands and need to know what to do ASAP. As much input as I can get would be appreciated. I have a 29 gallon tank about 3 months old housing two ocellaris clowns and a bunch of mushroom corals. 3 days ago we added some new tank mates 4...