algae

not sure what this is. It bloomed after a big water change. The tank has been up 8+ weeks and this came out over the weekend. The rock was curing for 13 weeks, started with a 2 week cycle of bleach solution then 11 weeks with just salt water changing the water weekly. Please help.

Hi everyone, First and foremost, here are my tank specs: Fluval Evo 13.5 AI Prime 16HD running BRS's AB+ schedule at 40%, mounted 9 inches above the water surface, and 20 inches above the sand. It is run at 40% intensity for 6 hours a day with a two hour ramp up and down. 10 lbs of live rock...

I just got this tank from a friend about a month and a half ago and the diatoms just went crazy about 3 weeks after setting it back up. The tank has been established for well over a year. I got 2 oscelarous clowns a cleaner shrimp and a small goby, 5 astreas snail 5 nasarious and a few other...

Hello everyone, I'm currently battling and algae outbreak since roughly 3 months. I just started a new nano tank at the beginning of the year - everything seemed great after cycling. However, currently there is an algae outbreak I can't seem to fix. First of some parameters of my tank...

i just purchased these zoas a couple days ago and was wondering if you can help me I.D any issues with them? they had bubble algae so i did a hydrogen peroxide spray 50/50 with water and now i’m thinking these little tentacles aren’t part of their anatomy either? i also noticed the algae on a...

Looking for some help in Dino problem I’ve had my Red Sea 250 (54gallon display) setup for 12 weeks now, the sand and half the rock were in my previous tank for an additional 4 weeks. Hard to tell from photos but it looks like dinos on the sand and glass. I have to clean the glass at least once...

I have a fairly new 50 L tank (this is my first tank) and I might be going away for 4 weeks soon and can't really ask anyone to do water changes so I was looking at getting an auto top off and water changer. What do people recommend? What other equipment do I need if I'm away for a while? I...

i’ve read pure white does fantastic, blue and red, red only, no less than 50% red etc. what lights/ light spectrum do you guys recommend from experience? is the most effective factor for growth proper current? thank you!

Hey all, Looking for some help identifying what's going on in the attached picture. I added my first corals about a month ago and while I'm getting new growth, I'm having a bit of an algae issue, especially on my zoas. It started off as a bit of what I assumed was just green algae on the frag...

Hello, I'm extremely new to saltwater tanks. I have a 13.5g fluval tank its about 3 months old. All my water perimeters are all good, but I have had a algae bloom for the past week or so. I'm been doing small water changes (about 1g per change) every other day with distilled water (my nearest...

Dear users, Suddenly out of nowhere my aquarium is covered with brown stuff. Snails died, and corals - especially polyps such as greenstar (which has been very thriving before), and zoa are retracted and seems to be very stressed as it is all covered by that brown stuff. It can be dusted off in...

Hi everyone, Have some algae growing on my back wall for the past few weeks. Phosphates read 0.00 on hanna, so I'm thinking Dino maybe? Nitrates also around 5ppm What do you think?

Hey everyone, im looking for some advice on treating algae growing ON my sps colonies. How can I treat it, how dangerous is it? How can I avoid it in the future. I've got three colonies it's really affecting. Two that had some kind of nuisance growth when I got them, one that didn't...

Looking for some help in my Algae issues. I’ve had my Red Sea 250 (54gallon display) setup for 10 weeks now, the sand and half the rock were in my previous tank for an additional 4 weeks. Hard to tell from photos but it looks like diatoms on the sand and glass. I have to clean the glass at least...

Hey guys. I just added more nerites to my tank. Theyve been in about three days. I added them to try and tackle the diatoms and algae problem. However, the last two days they have almost all been in the top corner of the tank where the auto feeder is. Yesterday I took them off the glass and...

Hello Reef2reef members, I have some algae growing on pumps and a bit on rocks (well actually growing on top of other algae already on rocks). I first thought it is cyano as it is a bit red/brown and can look dusty but also sometimes with strings To further ID it, I checked it under microscope...

Hey all, I’ve been struggling to eliminate and Identify this pls help

So, I bought a frag from a local reefer. The frag started growing bryopsis on the polyps so I did a Hydrogen Peroxide dip and it went away. Two weeks later the bryopsis is back and thicker.... About to try Flux RX but has anyone seen this or have any other tips to add? After I did the...

So I’m sure a bunch of you have seen @Bulk Reef Supply ’s videos on chaeto in a refugium and their graphs of nitrate and phosphate over time. Does anyone have anything similar for caulerpa? Or, anecdotal evidence for caulerpa to compare against chaeto in terms of phosphate and nitrate réduction...

Hi reefers. I posted this on the Bryopsis thread but I think because it’s such a massive thread that’s a couple of years old, no one saw it. So posting here in the hope that someone can answers me. So I started Floconazole treatment yesterday, and I was an idiot today and decided it was time to...

Hey guys, I had this slimy red coralline pop up and growing. It seems to be competing with coral for . Checked all over and haven’t found too many things like it. Anyone have any experience with it? I was thinking about getting an urchin to try to knock it out. My nitrates are high and started...