/r/algae

Photograph via snooOG

Oh god, they're so pretty. And small. Mmm. Algae.


The Algae Reddit

Algae - a very large and diverse group of eukaryotic organisms, ranging from unicellular genera such as Chlorella and the diatoms to multicellular forms such as the giant kelp, a large brown alga that may grow up to 50 meters in length. Most are autotrophic and lack many of the distinct cell and tissue types found in land plants such as stomata, xylem and phloem. The largest and most complex marine algae are called seaweeds, while the most complex freshwater forms are the Charophyta, a division of algae that includes Spirogyra and the stoneworts.

There is no generally accepted definition of algae. One definition is that algae "have chlorophyll as their primary photosynthetic pigment and lack a sterile covering of cells around their reproductive cells". Other authors exclude all prokaryotes[4] and thus do not consider cyanobacteria (blue-green algae) as algae.

Wikipedia: algae


Related Reddits


/r/algae

3,204 Subscribers

1

Cheep/Free media?

0 Comments
2024/06/28
21:49 UTC

9

Seen while hiking: a massive, solid, green formation “growing” out of the end of a culvert. Looks like a collection to sediment, salts, minerals, and algae. Maybe even aquatic moss in there. There may be a boulder underneath but I got the impression it was mostly mineral deposits, silt, detritus.

3 Comments
2024/06/22
04:16 UTC

6

What is causing this discolouration?

I've been culturing nannochloropsis in my room just using seawater over the past few weeks. The culture is very healthy, going from bright green to very dark green over each week. Once it's ready I'll let it settle overnight, decant the healthy culture, collect the concentrated sediment and transfer it to a smaller container for further compaction.

The water taken out from the concentrated wet sediment was left open to the air in this jar for a day or two. Now it's taken on this very interesting coloured response to light. I think it's cyanobacteria because you can still see some crashed nanno at the bottom, but what's with the red shifting?

The growth in this jar will shine a brilliant blue when you shine a light from the other side, but look at it from the same side as the light and it's coloured a deep red.

Would appreciate any explanation. Thanks in advance for your time.

3 Comments
2024/06/20
09:45 UTC

2

What species is this? Aerobic vernal pool central ca in riparian habitat

Red legged frog in background.

2 Comments
2024/06/19
23:31 UTC

7

Discussion: DIY Algae harvesting systems

I currently use a set of jars and wick water from one jar to the other using plant-based garden twine. This allows the larger solids to remain in the first jar, and the wicked off water is recycled through my grow system. After a time, the solid/denser algae is collected in a 3rd jar. This is a simple system, with the twine being replaced when it breaks down.

I wanted to know if anyone had a different system for separation they would like to discuss.

3 Comments
2024/06/13
18:56 UTC

4

Anybody know what this is?

Hi all! Am a chef in Argentina and recently came across this. Would love to plate this up, it’s salty and firm. Any ideas as to the name? Thanks!

3 Comments
2024/06/11
02:11 UTC

3

What is this algae?

Ive been dealing with this stringy red algae for a few months that grows on the upper water level of the tank. What is this? Im constantly scooping it out before doing my water changes its so annoying 😭

2 Comments
2024/06/09
18:38 UTC

2

Algae or?

Parents pond, leaking under a bad culvert but still holds. Any idea on how to clean up the algae? Also what kind is this?

Do not want to use any chemicals

4 Comments
2024/06/09
13:32 UTC

4

Preparing for Algal Test tomorrow

Never thought in my life I would be taking algae but here I am. It's quite enjoyable. I'm taking Biology & Propagation of Commercial Algae. Planning to take Phycology subject for next semester. Wish me luck 🍀😆

0 Comments
2024/06/04
06:13 UTC

8

What cyanobacterium (?) is plaguing terrarium plants around the world? It appears as gray mycelium that turns green, and grows also over plastic and moss.

6 Comments
2024/05/30
00:02 UTC

3

Need Help with Artificial Seawater for Growing Microalgae

Hi everyone,

I'm looking for advice from anyone with experience in making their own artificial seawater for growing microalgae. I'm facing a problem that I can't seem to resolve.

Whenever I autoclave my medium to sterilize it, it ends up forming crystals. After autoclaving, my algae don't survive. How can I prevent these crystals from forming, or do I need to try a different method of sterilization?

I suspect that the salts are precipitating and changing their composition, making them insoluble afterward, which might also alter the pH. I'm using commercial instant salt for making aquarium seawater.

If anyone has any tips or solutions, I would greatly appreciate it.

Thank you!

8 Comments
2024/05/27
21:19 UTC

2

I would like these Red Blotches identified.

I was trying to grow this aquarium plant emersed in water. The species is Utricularia graminifolia that I got from a tissue culture, so the red blotch didn't hitch a ride that way. The black substrate is aquarium filter activated carbon. I've had the same water from a purified source filled up to just under the carbon. Days after the plant started to melt, I noticed the red spots. The water being stagnant is most likely the cause. I'm trying to set up my microscope camera so I can show detailed close-ups of it.

https://preview.redd.it/2dwx0yiqns2d1.png?width=630&format=png&auto=webp&s=8b6d6d544c16123ff48854ef7aef9817017e9367

2 Comments
2024/05/26
15:57 UTC

3

Behold the Glow: 26 Minutes of Bioluminescent Waves at Torrey Pines (Color Night Vision)

0 Comments
2024/05/25
21:16 UTC

1

Identification

Swimming pool water (fresh water mixed with chlorine) Is this even algae?

0 Comments
2024/05/23
22:34 UTC

3

BioDesign with algae in fashion

Good evening, I'm working on my bachelor thesis in fashion design. The topic is how the innovative BioDesign processes can included in a fashion collection. In a speculative design I wanna create a future scenario where Algae generate energy and oxygen.

The scenario describes a future society where personal oxygen is generated by algae in clothing. Furthermore, other elements of the clothing are designed to generate energy through algae. This is where I have reached the limits of my knowledge about algae.

The growth of the algae is intended to be a fundamental design element that connects the clothing. I am currently looking for microscopic images and videos of algae growing to incorporate this into my collection. Does anyone know where I can find such high-quality images? They need to be of high quality so I can use them for textile prints.

Additionally, I want to use the living organism to visualize the concept effectively. Does anyone know which type of algae is best suited for this and what conditions it needs?

I would appreciate any input and ideas. Thank you!

4 Comments
2024/05/22
17:50 UTC

2

Where can I find a live starter kit of Chlorella pyrenoidosa in South East Asia?

1 Comment
2024/05/22
04:11 UTC

7

Is this toxic algae bloom or a natural occurrence? How does one know the difference?

11 Comments
2024/05/20
17:11 UTC

2

ID help

Hi group. Does anyone know what kind of microalgae it is? I know that the photo doesn't have the best quality but I hope it works. Thanks

5 Comments
2024/05/20
05:51 UTC

1

Is this early sign of algae growth?

3 Comments
2024/05/18
08:58 UTC

2

What happen to my tank

is this one kind of fungus or sth else?? it clings to the glass made it so dirty, but my fish looks fine

4 Comments
2024/05/17
08:09 UTC

3

Hello, was wondering if this is algae (and if so, what kind). Found in Western MA

1 Comment
2024/05/14
21:58 UTC

4

Hi guys, I need to identify this micro algae

6 Comments
2024/05/13
23:13 UTC

2

Looking for microalgae experts

We are exploring applications of microalgae and hope to collaborate with experts or researchers with similar interests. If you have in-depth knowledge of microalgae or are interested in its applications, please feel free to contact me

5 Comments
2024/05/13
06:42 UTC

1

Growing Chlorella At Home

Hey so I been researching on how to grow chlorella at home so I came to this conclusion. If you're making chlorella at home you can also make bread and wine/beer! As the bread and wine ferments it produces CO2. Capture that CO2 and run that CO2 via tubes through your chlorella growth medium. Then add light.

Growth Medium Ideas:

  1. Dried Seaweed. Make sure you rinse off the salt from the ocean. After seaweed is salt-free blitz with water (try to use mineral water!) and soak for 24 hrs. Strain off solids.
  2. Bananas and Coffee Grounds. Blitz banana peels and coffee grounds. Soak for 24 hrs. Strain off solids.

Water Medium:

  1. Mineral Water
  2. Distilled/Purified Water
  3. Tap Water. Make sure you let it air out for 24 hours to dechlorinate it.

P.S. Just so you know I haven't practiced this, but this is the result of 24 hours of researching on how to grow Chlorella. There actually isn't much information and had to tons of digging. Hopefully this helps and if this succeeds let me know!

Fun Experiment Idea:

Using Pee as a medium to grow chlorella. Gross... but fun xD

Sources:

CO2 System

https://www.youtube.com/watch?v=SERsKOQXUzQ

Seaweed Fertilizer

https://www.youtube.com/watch?v=RMB90yGk-yU 

TL;DR

Connect CO2 System into Seaweed Fertilizer mix. Add Chlorella culture. Add light. Wait 7 days.

4 Comments
2024/05/12
10:06 UTC

3

Is this algae? And if so what kind?

Started finding this on the edge of our pond. Is this algae and if so is it a toxic kind?

4 Comments
2024/05/11
16:18 UTC

3

What is id of this algae?

It looks like hydra but seem doesnt move and have white color

4 Comments
2024/05/09
15:17 UTC

3

What is this?

Can anyone tell me what this is and if it's dangerous? I've never seen it before.

2 Comments
2024/05/04
22:51 UTC

1

Is this algae or has my sphagnum moss started reviving?

0 Comments
2024/05/03
23:39 UTC

5

Does somebody know what this is? We find it regularly but we can’t ID it, is it even algae?

Help much appreciated, I am so curious about those..

6 Comments
2024/05/03
20:01 UTC

2

Algae Density Measurement

As the title suggests, im looking for an easy way to measure algae density. Is there a standard for this?

13 Comments
2024/05/02
08:20 UTC

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