algae bloom

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...

So I’ve noticed for a while I had some brown stringy stuff in my sand bed, but it never became a nuisance. Recently I’ve noticed it becoming more active and on the rocks. I’m leaving a link to the video I took: Anyone know what this is?

Hey all, I have a relatively new 180g tank (4 months), which finished the initial cycle 4-5 weeks ago. I’ve put a handful of fish in there and have put in a decent sized CuC in there. I noticed this past week that some type of algae has started growing on the sand. Now it’s starting to grow on...

Hi guys I have been fighting this battle against algae for the last 8 months and I can't find a way to make it recede. It has been always getting worse and now it is at the point that the wife is having seconds thoughts about having the tank. I will try to post as much detail as I can, let me...

I thought I’d ID’ed this stuff as Licmophora sp. but now that I’ve let it grow out, I’m not so sure. It’s a brown-ish white looking feather protruding from the live rock in mostly high light intensity areas and emerging from what looks like existing algae. Salinity: 1.025 Temp: 78.6 Ammonia: 0...

Alright ladies and gents. I just started a new 60 gallon aquarium. I currently have a 150 reef tank that I’ve had for over two years. My question is, my tank is cycled, I have a ton of algae. Like at night I clean the tank and scrap the algae and the next night it’s covered in green algae. Is...

Hello, I'M new to the forum but have been in the hobby for some time before quitting and coming back. I started a 20g IM nuvo over a year ago and have been battling with Brown Diatom Hair Algae. When I set up the tank I had (and still have) a skimmer, bio-pellet reactor, cheatomorpha carbon and...

My tank cycled up fairly quickly with respect to ammonia management - about 2 weeks. I cycled with established LR that I got from a fellow hobbyist -- that LR was also established with some Green and Brown HA. (40b with 20L sump; no fish, CuC only, set-up in Mid Sept 2017) My nitrates climbed...

Not exactly new to the hobby, but its been a while... Never had this issue before. 75 Gallon Das aquarium, Trigger system 26 sump, Reef Octopus 110ss skimmer, Microalgea refugium, and as of yesterday a Phosban 550 reactor. Dual T5 Lamps. I got a massive red/green algae outbreak. Nitrates went...

PLEASE DO NOT POST UNTIL I SAY THE LAST STEP HAS BEEN REACHED! This will take me some time to type it all out an get all the pictures right. Thanks guys and enjoy! This is a step by step guide on how I built my nano Algae Scrubber for nano reef tanks. The Algae Scrubber is made out of black...

i set up a nuvo 10 about 2 weeks ago, I now have lots of brown algae everywhere, I tested the nitrate nitrite and ammonia and all are saying 0. Does this mean I'm done my cycle? Or has it yet to start? I'm unfamiliar with cycling because on my last tank I used bio spira and didn't have a cycle...

Hi all! I'm having a Cyanobacteria bloom in my display tank. About a month ago, I had a marine velvet outbreak. I'm now in the process of running my tank without fish. The bloom started after 2.5 to 3 weeks of being empty. My LFS thought that it could be due to the lack of bioload. Basically...