• Organization of water flow in a marine aquarium.

  • Lindsey3628

I want to raise the topic of water flow in the aquarium. It is considered that alongside lighting, flow is one of the most important factors for the proper functioning of a marine aquarium. Everyone knows that the flow should be strong, but how strong? After several unsuccessful attempts to keep anemones (they successfully ended their lives in the flow pumps), I decided to reread the topic from a well-known aquarist who successfully keeps several of these animals. It turned out that in his 600-liter aquarium, there is only one Tunze stream pump, approximately 4600 liters per hour (in my opinion, just a large ordinary pump), and one "head" for 700 liters. Meanwhile, the aquarium is thriving! Therefore, the question is - how is the flow organized for those who keep these animals? I currently have a Resun Waver 15000 on my 400 liters, rated at 6000-15000 l/h, two SunSun JVP-102s at 5000 l/h, and one head at 700 l/h. The overall circulation is about 20,000-25,000 l/h. The aquarium mainly contains hard corals. P.S. I would also like feedback on the pumps being used, what works well and what does not.

Kayla7655

That's right. Not everyone, I would say far from everyone, enjoys a strong current of water. Some not only get stressed by it but ultimately perish. Such cases have occurred in my memory. However, I should clarify that this happened when there was no one to take action—remove the fallen pump, which acted like a fire hose on the nearby substrate. Discoactinia can be blown away, while goniopora and euphyllia can engulf polyps and not release them until the strong current subsides.

Michele9664

Due to the strong current in my aquarium, the discus fish were being knocked off the rocks. The euphyllia was turning its mouths inside out. The aquarium dimensions are 80x55x50. The current is from a 5-ton San-San pump, similar to the Resun Waver 15000, with a flow rate of 6000-15000 l/h, but less powerful—I'm thinking up to 5000 l/h. Plus, there's a return of 2000 l/h. I just replaced the 5000 l/h pump with a 3000 l/h one, as recommended by the store. Now there are practically no dead zones, and the inhabitants really like it. By the way, this pump is connected to a timer with a lunar cycle and turns off from 1 AM to 6:30 AM.

Jason9385

Normal course.....

Alexandra

The topic is good, I'm quite tired of the streams sticking in the corners. I plan to restart my 450L in the near future and definitely use external pumps + a vibe box. The only downside is that it heats the water, but that's solvable with a chiller.

Melissa2062

Wow... That's quite a solution.

Brooke

I have a not expensive refrigerator that runs on cold water, fortunately, there are no water meters.

Gene1948

Offtopic Vitalik, a couple more such projects and we can start a new, more complex one. The idea is great. But won't it be too noisy?

Julie4738

Vitalik! Were you a plumber in your past life? What a mess you made.

Chad9037

It will definitely be noisy. Plus, you need to have a spare pump on hand for emergency replacement. Also, someone should always be at home - if the pump stops, the flow will stop too, and the aquarium will "collapse" in half a day.

Maria

He was probably a plumber. The noise is no more than that of other pumps like Askoll, Aquamedic, Atman, etc. For emergency replacement, I agree, but it is unlikely to stop; even if we assume it does stop, the aquarium won't crash, the return works.

Jennifer5784

Hello everyone. I want to buy flow pumps from this topic JVP-101B JVP-102B I can't decide which ones to take and in what quantity, please advise, the aquarium volume is 250 liters. I also have a pump from an old filter for blowing the back side, Atman 1800.

John5528

Put a couple of tachy JVP-101B on magnets. That should be enough.