The old reef looks amazing. Good job.I hope so, but there's a long way to go ;Nailbiting
What are your plans for water flow throughout the tank in the new big reef?
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The old reef looks amazing. Good job.I hope so, but there's a long way to go ;Nailbiting
Thank you!The old reef looks amazing. Good job.
What are your plans for water flow throughout the tank in the new big reef?
Hi Sallstrom, thanks for the photo.
I was thinking, as you are still planning the new exhibition this link may be of some value to you. https://www.burgerszoo.com/about-burgers-zoo/coralhusbandryorg/
Scroll down the page for some useful links.
Yep, that’s always the trick.Thank you!
The flow will be a challenge. Most of the large reef tanks I've seen at other public aquariums have had quite low flow. So this is something we would like to do differently , we want almost the same turbulence as a small reef tank with wavemakers.
There are a few large stream pumps on the market now. But we need to follow the Swedish law on Public Procurement, so I can't say which on we will use yet.
Another important thing for us is to hide all the pumps and pipes and everything else that's not supposed to be a part of a live coral reef. So the reef structure needs to be smart, creating areas for pumps which can't be seen from the two windows.
All the structures inside the tanks, the flow, lights, sand, etc are things we haven't decided yet. We are still debating on many of these things
In this stage we are in now, from now until January, the walls, big windows, the three large tanks, the sumps, saltwater mix, RO tank, filters and skimmer sizes etc will be decided.
Yep, that’s always the trick.
Easy to hide pump outputs within the reef...the problem is then that the flow is starting within the reef and flowing out into the water column, where we want it coming from the water column onto the reef. Getting flow from the water column onto the reef is easy enough to do...if you’re OK seeing outputs. More difficult if you don’t want to see anything.
There are some ways to hide them, but they involve shielding small portions of the front viewing panel (corners and 12-15cm @ the top w/outs angling down).
Something else that works on big tanks for getting alternating flow: the use of actuators/motorized ball valves on recirculating pumps. Pump out is T’d with a built-in ball valve, and an actuator is attached to ball valve. This is connected to a controller which rotates the ball valve at various intervals. Flow switches from one side to the other without putting any strain on the pump. It can’t run continuously, but it can alternate several times in a minute. 5 or 6 big pumps with 10-12 outputs switching back and forth numerous times/min can give you some fairly chaotic flow w/o breaking the bank.
I would definitly use a Carlson surge device. If You tune it in with the lenght resonance of the tank you can easily create a wave of an inch or so. That would garantee some flow in the lower areas in the tank.
And if you have a tank of Reef Flat please use sunlight imitation - 10 000K. The bluer light is in greater deep.
I guess you have seen the Giesemann 1000w leds?
Will be fun to follow this! And I'll be sure to come for a visit once it's all finished.
I have to admit that I didn't see the old museum, you guys are set up on the wrong side of the country