I would need to store viable chlorella for about half a year. How do I do that? For example, I thought about drying, but I couldn't find any reliable sources.

Hey all!

At a lake in western New York for the week and the algae has been very thick. We usually let our dogs run in the water but have been hesitant due to fears of Blue-Green Algae.

No one we’ve gotten in touch with seems to have any idea.

The attached pictures are from just off the shore. The stick was just slowly dipped and lifted out of the water (stick test) and the glass jars contain samples collected about 30 minutes ago (jar test). I will update the jar samples in 2 or so hours.

Can anyone tell me whether they think this water is safe to swim in?

Thanks!

Anyone know what this is? Taken Wednesday in upstate NY. Pond is large and man made and used exclusively for dog hunt/field training. It is stocked with fish. Of course those of us who train here are always worried about blue green algae.

This was only in one small corner of the pond. Dogs were training more toward the middle of the pond and all are completely fine. But still this coloring worries me.

Thanks in advance!

I have decided to buy F/2 concentrate from amazon. I need to make sterile F/2 media for my marine dinoflagelates pyrocitis fusiformis but im just a small time hobbyists and do not possess a flowhood or glovebox. Can i just add f2 concentrate into mason jars of artificial seawater and pressure cook the mason jars?

I understand theres some vitamin components that will denature if i do this but do dinoflagelates really need vitamins?

Can i use calcium nitrate instead sodium nitrate to make f2 medium for marine dinoflagelate culture? Sodium nitrate is a controlled substance in where i live.

I saw my first red algae or kelp pooling last night on the shore of Gardnier’s Bay up stream of Accabonac Harbor in East Hampton, NY yesterday. I also saw pockets of the same in bright green attached on rocks and other sediment. I’ve never seen it before! Does anyone have any insights into the severity (or the opposite) of this in terms on the health of this particular aquasystem? The water temperature was definitely warmer, I’d estimate 71-73°F, compared to 70 at the Atlantic Ocean itself 15 mins away. There was rain earlier this week, but definitely no more than .5” over a few day spread. Thanks for any insights!

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.

Red legged frog in background.

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.

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!

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 😭

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

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 🍀😆

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!

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

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

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!