algae

  1. B

    White hair looking stuff on my rocks and grows on inverts

    I have had this white hair looking stuff for as long as I can remember that wont go away. Ive researched multiple times and ive always though it was a bacterial bloom but im really not sure. My alk/dkh is the only thing that is low but ive raised it up to 2.9/8.1 since i need to go slowly but...
  2. mathew.jarvis

    What algae is this?

    So, I had this tank for about 2 years now but 7 months ago I redid my scape with some old and new rock and within 2 weeks brown coloured hair-algae-like filaments started sprouting up. I remove them about every 3 weeks manually by hand and brush the rock. The strands feel silky and come off...
  3. F

    5 month old tank brown hairy algae on rocks. Need to be concerned?

    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...
  4. C

    Eggs or algae ??

    I noticed these today… are they clownfish eggs or possible algae (like bubble)
  5. X

    Is this dino?

    Is this dino if so what type
  6. Reefer_Marc

    Using Flux RX (fluconazole) to kill caulerpa infestation

    Good morning everyone! I am having trouble with a caulerpa infestation for a long time now, i tried manual removal every week, out competing the caulerpa with chaeto in the refugium and with more corals. Also 2 years ago i took out all of the rocks and scrubbed them down, took my friend and me...
  7. ILOVEYOUHALFISH

    Best way to scrape bottom portion of front glass? Stubborn algae!!!

    Hello! I’m curious as to how you guys clean the bottom front portion of your Aquariums glass (near the sand bed) I have this bottom portion of the glass that is always hard to clean… right near the sand bed there’s about a 1-1.5 inch portion of stubborn algae that is always a pain in the *ss… I...
  8. H

    Algae Id

    Tank (75gal) has been up for around 5 months now. All Marco Rocks except for one that I brought from my old tank that was 1.5 years old (upgraded after moving). Was wondering what algae this was? Is it really just diatoms still? I have a handful of Astreas and Ceriths that seem to be eating it...
  9. L

    Hello Alga filamentosa

    Buonasera a tutti io ho un acquario rio180 juwel adattato da dolce a marino con schiumato interno juwel 5000 L l’ora, filtro esterno Jbl 1502, skimmerino per la superficie. Ho una vasca chiusa con comperchio con lampade led con unica resistenza blu e bianche con 8 ore di luce giornaliera...
  10. T

    Help with Algae ID - water analysis included

    Hey All, I have been fighting this reoccurring algae problem for months and months now and just cannot get it get kicked. I think its dinos but kind of looks like cyano too. The pics below are hours after a 3 day blackout with chemiclean treatment (might have been old, does it expire?). It only...
  11. N

    Will filter floss in HOB Refugio affect copepod population?

    I have an aquaclear hob converted into a Refugium. In the chamber before the chaeto, it is the water pump with constant flow, flowing through the grated plastic barrier separating the 2 chambers. I assume it is ok to run filter floss in this portion? I haven’t noticed any copepods in that area...
  12. D

    What happens if you leave out a container of saltwater?

    I wanted to grow saltwater algae from nothing but saltwater and fertilizer. I measured out about 35ppt saltwater into a container, added a few drops of Thrive, and placed it outside raised up. I know that for freshwater, algae can come through spores in the air, and if you have any large...
  13. B

    Algae help?

    Hey all, I have a 25 gallon AIO, been up for over a year, I feel like in my old 75 gallon tank I had this too but what is all this stuff on my rocks? I’m assuming it’s a buildup of some algae, it’s not hair algae but I’ve never known what it is and usually I just up my flow and get more snails...
  14. Targeted Sandbed Dino Control with the UV Sweeper by 3DReefing

    Targeted Sandbed Dino Control with the UV Sweeper by 3DReefing

    3DReefing UV Sweeper — Targeted Sandbed Dino Control for Reef Tanks Introduction Benthic dinoflagellates like Amphidinium and Prorocentrum are among the most persistent and discouraging pests in reef aquariums. Often called “hobby killers,” they are one of the leading reasons reefers quit the...
    • Moe K
    • Article
    • 2 min read
    • 3dreefing algae amphidinium dinoflagellates dinos lca prorocentrum sandbed uv sweeper
    • Category: General Saltwater Aquarium
  15. david.hatton

    Help identifying algae and a cure?

    Hi everyone, firstly I'm new to the forum so thankyou for having me. I have my first 500 litre saltwater tank that has been up and running for about 6 months. Fully cycled, all parameters are great, apart from alkalinity which I'm currently dosing redsea foundation to raise. I am running t5...
  16. R

    Dinos?

    Just got my microscope in today to help diagnose what is in my tank. Looks like dinos. Sorry for the shaky video. Any tips on how to get rid of it?
  17. T

    Can you guys help me identify what this fuzzy stuff is and what steps I should take next if any?

    I started up a 15gallon reef a few months ago and have found every inch of my rock is covered in this fuzzy growth. It’s over a good portion of my back wall and my algae scraper too. I’ve been using saltwater from the fish store and topping off with RODI. Only things in the tank are two...
  18. J

    Red algae bad?

    How do I get rid of it if it's bad?
  19. W

    Algae Growing on sides?

    Hello, I know it’s hard to see, but I have these little plants or algae or whatever they are growing on the glass in my salt water tank. Are they bad? Should I evict them? Or are they good for the tank? I honestly have no idea so someone please let me know. Thanks.
  20. William Spak

    Algae problem after new light

    Hello all! I’ve attached some pictures below of an algae issue in my 75 gallon 7 year old reef tank. This issue has happened ever since we got a new light- the blade coral grow. We had no algae before this light. The tank experienced a whole lot of coral growth with the new light followed by...
  21. teresa711_

    help algae new to saltwater

    what is this algae and how do i fix it ??
  22. aidanwil3

    What is this glowing red algae on my sand?

    Hello. I have this algae growing in my dt that glows bright red under blue light. Unfortunately i cant show this because my phone camera doesnt show colors in blue light, but photos in whiter-light are attached. I would like to get rid of it as it is growing all over my sand but i dont know...
  23. Raazka

    I’m having algae issue

    Hi all, for the last 11 months I’ve been having serious algae issues in my tank that I just can’t pinpoint how to get rid of. It’s green/brown in coloration and will either appear as long hairs on the sand and rocks or just as a fine layer on the sand. Snails and hermits don’t seem to touch it...
  24. nlastner

    Uglies or something worse?

    Hey everyone! So this tank has been up and running for about two months now. Everything was going smoothly at first, but then my auto feeder accidentally dumped more food than it should have—and I didn’t catch it right away. Next thing I knew, I had a bloom in the tank. I added a UV...
  25. Austin Wiant

    What is this alage???

    Can anyone tell me what kind of algae this is? Its been growing in my tank for the last couple of years. Since it doesn't bother the fish and I was in college, I couldn't really keep up with maintenance so it is way out of control. It built up along the entire sandbed about half an inch to an...
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