algae bloom

I have a few feather dusters that came in with my live rock and I love them, they have some sort of growth around the openings of the tunes, does anyone know what this is? I've only been doing this hobby for a short time and I don't even know what to accurately call it to look it up. An algae or...

i have this brown algae im assuming growing on my tank walls like crazy where im scraping almost every day( it is a month old or so tank) its now more prominant on my rock and a little on my coral, i also found this brown spot on my clown as well, im not sure if this is related. any help would...

Hi, I use RO water, perform bi-weekly water change. I notice green algae on the rocks right after my water changes. The RO filters are 3 months old and not fully used to their capacity. What I did notice was, if I don't change the water for 4 weeks the water was relatively better than 2 week...

Hi reef2reef. after battling with ich and now having setup a hospital tank, I think it is time to get control of algae in my tank. I have a lot of diatoms and a little green algae. here is what I have planned so far, please tell me if this is too many invertebrates, if there is something else...

Hello all, I’ve been having trouble with algae blooms during the day when my lights turn on and I have a UV sterilizer that was part of a yard sale bundle I got a few years back. I was wondering if anyone has tried this before and if it’s reef safe. My main concern is nitrifying bacteria but...

Hi all, hopefully you can help me!! I have a 24 gallon AIO waterbox peninsula, roughly 8 months old. I have been battling algae for the last 4-5 months. I believe its a combination of diatom, dinos and maybe cyano? the algae doesn’t completely disappear at night, but does reduce slightly. If...

Hello all, As the title says I just got back into saltwater after about 10 years. This algae whatever it is is winning the battle because I am out out idea's my water parameters are near perfect though about a week ago I added some calcium supplement (for my halimeda plant) and misread the...

Hello everyone If anyone would be kind to help us in our new tank. We have had it for 2 months now and just last week this showed up. We can't get our hand on what it is exactly. We have caribsea Life Rock and life sand Ammonia - 0 Nitrite - 0 Nitrate - 20ppm Lights are on for 6 hours We do...

Hello everyone If anyone would be kind to help us in our new tank. We have had it for 2 months now and just last week this showed up. We can't get our hand on what it is exactly. We have caribsea Life Rock and life sand Ammonia - 0 Nitrite - 0 Nitrate - 20ppm Lights are on for 6 hours We do...

Noticed this in my refugium today. Not quite sure what exactly it is? Also noticed this brighter red algae top of my Aquascape kind of suspect cyano for that one. Any thoughts are greatly appreciated thanks in advanced I will update with water parameters shortly.

I have this light pink, hairy algae growing over my live rock, but only on the rock in the shade. I've been looking all over for what this might be, but cannot find any similar photos/threads/posts about this type of algae(if that's what it is). I recently added some more liverock before I left...

Hello, I have a question about my water. My tank is about a year old, everything has been running smoothly for a while now. I changed my AI Prime HD light settings from David Saxby to the BRS AB+ settings, and about 3 days later I got home from work to tank with extremely cloudy water. I have...

I have been trying to get a handle on my algae issues for about, well too long. I am calling in the cavalry because I am at a loss of solutions. I know there are going to be recommendations that scare me, suggestions that undermine my intelligence and news that breaks my heart at some point...

What is this that is taking over my tank!? These are the best pictures I could get with my son’s microscope. But I figure someone out there might be able to I.D. what it is…. At first I thought dinos or diatoms because they came back worse when I cleaned them and did water changes. After...

Hi tank has been running 2 month. Never had the brown diatoms but for the past 2 weeks ive had this green algae on the rock and sand. Could anyone identify it for me please and what cause of action is needed if any. Tia

I recently started up my tank about 6 weeks ago and have now gotten this algae outbreak out of no where. It’s brown algae across the rocks and also across the sand which has been a nuisance since it’s constantly seems to come back. I also seem to see a weird haze in my tank but only really...

Hello everyone. I am currently dealing with a problem with my 48 gallon tank. The tank has been cycled for about 3 months now. I have 3 clownfish, 1 anemone, 1 mushroom and 2 acros....Since last week, my tank has been filling up with brown algae and i cannot get it to stop overtaking the tank...

Late in documenting this one but gone from my 5yr 30 litre nano to a 200 litre with 80 litre sump. Built the stand and used a 100 litre tank to build my sump adding 5 baffles. Drilled 4 holes and plumbed in the bean animal style. Nice and quiet! The only noise is at my final baffles / bubble...

Anyone know what I should do in order to get rid of this algae? i had dino’s at first, did a 3 day blackout and now they’re gone but I have a different algae growing. Any idea of what I should do?

Dinoflagellates or diatoms?, brown/reddish with a slimy coat on top, but it doesnt have the snotty bubble tips like dinoflagellates does. What you y'all think?

I'm new to reefing and saltwater in general, and I now have a pretty large algae bloom. I read somewhere it can be caused by something in the water if it hasn't been filtered properly, or that the presence of it also means the tank has finished cycling. Regardless, this led to me testing the TDS...

This bacteria or algae is taking over my tank and making my leather corals shrink. Please help me fix this? Phosphate are zero, ammonia is zero, nitrite is zero, nitrate is zero, alkalinity, calcium, and magnesium all in range. Don’t know what else to do. I have done water changes, changed...

Had a tank crash a month ago as my doser failed and caused Alk swing. Tank is recovering slowly but there is a lot of algae. My cheto is not growing as these algae are growing all over my glass. Will Hydrogen peroxide dosing help? How much should I does? WIll it affect my shrimp? My nitrates...

Hey guys first time posting in here hopefully I can get some answers as I can’t get any in my usual Facebook groups. So basically I started noticing this white “film” all over the substrate one day, I didn’t know what it was but didn’t look like it could be beneficial so I then syphoned all the...

What is this stuff? Tank is little over a year old and all of a sudden got this stuff on the rocks. Coraline gets covered in it then bleaches out and dies. Noticed phosphates 0 ,nitrates 4-5, alk 9, Ca 445, mg 1450. It’s a 40 gallon with 15 gallon sump. Lighting is 16 hours on lit by single...