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Martin3206
Kevin3114
Place the intake and outlet pipes closer to the center of the right glass so that they are closer to the center of the aquarium, and then you will not have stagnant areas. The outlet pipe will direct the flow towards the opposite wall, while the inlet to the filter will draw in water.
James4757
My goal is a constant, slow laminar flow, without stagnant areas.
Heather9815
How can there be stagnant areas in an aquarium with live fish?
Randy
It's simple: this is an aquarium for jellyfish...
Jacob4800
This is where you should have started. And create a topic in the appropriate section. In general, the content of jellyfish is a very complex separate topic. Check out rifcentral.ru. In the future, I advise you to make the topic title more precise, otherwise you will get a lot of advice.
Daniel8015
I have studied a lot of literature, opinions vary, and aquariums are different... I just wanted to hear opinions about the two water flow schemes I presented... Initially, my topic was in "DIY," I did not move it here...
Deborah2682
One of the few places that makes jellyfish tanks is located in Odessa. The prices are astronomical, but there is a chance to see them in person. Although they create real carousel-type aquariums for jellyfish. And I understand that your task is to make a pseudo-carousel type jellyfish aquarium (i.e., based on a rectangular aquarium?). In your designs, you won't be able to create suitable currents for the jellyfish; the second option is closer, but the water flow should come from top to bottom, not bottom to top (we shouldn't forget about the air bubbles, right?).
Your goal is to get as close as possible to this design.
Maria
Option 1 is the most successful, but this is not a laminar flow, and where you marked with a red line, there will also be a flow, but less, and the barrier will not stop it, but will continue the swirling. You cannot create laminar flow in one direction; at least three, preferably four directions should intersect with each other.
Matthew1280
It's elementary, in a 300-liter aquarium there are 70 kg of stones and guaranteed two or three stagnant zones.
Emily3506
Yes, prices are astronomical! That's why I decided to make it myself from silicate glass with acrylic inserts. It will be five times cheaper!
About the bubbles: there won't be any, as the water will be supplied from an external filter, it's been checked.
So I wondered why there wouldn't be a suitable current. After all, in the ocean, water doesn't flow in a circle... The main thing for jellyfish is a smooth, slow, laminar current without bubbles. In diagram No. 2, I have little idea of how the current will occur, as the drainage point is located where the water is being poured in!
Wesley
How are these stagnant areas visible? By eye)))
Karen2578
Those who are into marine aquaristics know this, and if they don't, it's a disadvantage for them. Personally, in my aquariums, I not only know where stagnant areas can be if I don't take measures, but I also periodically find these stagnant zones over time. I can't explain how they are visible, but I can show you when I'm at the aquarium where they exist or where they might be. For example, behind the reef, there always needs to be one pump at the bottom, and at least two more around the perimeter in addition to the return pump. The setup is already tailored to the specific reef. Therefore, it is necessary to install such a number of circulation pumps and position them in a way that prevents stagnant areas in the aquarium.
James4757
And by eye too. There, detritus accumulates.
Raven7170
Off-topic. Please stop writing nonsense about how you can fit 70 kg of stones into 300 liters and that it looks nice. There won't be just 2-3 stagnant zones; there will be one continuous stagnant zone.