Weiß jemand um welche Art Algen es sich hier handelt?
Hello, I have three leopard pufferfish, all about 3 to 4 cm long, so still fairly young. One of the three never leaves the other two alone. Whenever they want to eat, he comes and chases them away. I'm worried about them because whenever they're in sight of one of them, they get attacked, and…
I have had an aquarium for 2 days and the plants are very pale, especially the large Right rear. Is it possible that it's broken, or is this normal and she'll recover?☺️Thanks for your tips.👍🏼
Hello, since I plan to plant my Juwel primo 70 next week, I have a question about the lighting. Since I want to keep Anubias, among other things, I'm a little worried that the aquarium's light might be too strong. What would you say? Perhaps you have the same aquarium and have experience with it?…
Hello, I wanted to ask if my guppies are just fat or pregnant? If they are pregnant, do I need to get a spawning box or something similar? I'm worried the young ones will get sucked in by the filter. Thank you in advance
How many bristlecone catfish can you keep in a 240l aquarium?
Hello, I have a 200-liter tank with a male purple cichlid, a cockatoo dwarf cichlid, mollies, platies, neons, etc. My male cockatoo dwarf cichlid is extremely scared and spends all his time in the corner. He barely eats, only has half a tail fin left (will it grow back?), and avoids all fish. Since the…
Looks like the typical blue algae.
Not quite harmless.
https://de.wikipedia.org/wiki/Cyanobakterien
https://co2-anlage-aquarium.de/blaualgen-im-aquarium/
Clearly a red algae, no blue algae. They are bartalgains.
Would you like to look again?

Oki. Thank you.
On the picture in your link are either bartalgains or a lively green algae that is overgrown with blue algae.
On the image of Mia are core-healthy bartal genes that have reached about half their maximum length.
bartals