Which wavebox?

Gatorbait

New member
I've got an Elos 160 mixed reef running 2 6095's right now and love the amount of flow but its all linear and am thinking about getting a wavebox. With the 24v jumpers in and one 6095 on each back corner pointed towards the front pane it blows my sand all over. Which one would you recommend, the 6208 or the 6215?
 
I have about .75" of clearance from the top of my coast to coast overflow and the top of my rimless tank. How do the waves splash over this type of overflow and over the edge of a rimless tank with this little clearance? Is the wave height adjustable for us with less clearance? It's a 4.5' x 2' tank
 
The wave height is adjustable so both cases are possible, however, when a wave is less than 3/4" high, the value of it toward contributing any meaningful flow is pretty limited 3/4"-1" is really the ideal in terms of not stressing the tank seams too much and creating a good flow. Unless you are just after the aesthetic swaying effect of the wave, your money would be much better spent on controllable prop pumps used in a non wave mode. You also have to keep in mind that it is a rare circumstance when a wave type flow is suitable as the only flow, it lifts and suspends debris, and encourages polyp extension, but it lacks any direction so that debris needs a directional current to sweep it away, you will almost always want some prop pumps as the basis of your flow and the wave flow is just a supplement.

With a coast to coast overflow the water will simply surge in on the high end and not enter on the lower end.
 
Thanks for that.

I should have mentioned that my tank is a peninsula so the wave would travel the 4.5' length and hit the coast to coast overflow head on.

I'm looking at getting my overflow modified before I fill the tank with water, how much room do you recommend to have above say a .75"-1" wave to keep the water from splashing out of a rimless tank?

I do have other Tunze Streams to direct the flow but was looking at one of these since this will be an anemone tank. Some others have said anemones cannot get sucked into these the way they can into power heads. Is this true?
 
My understanding of a coast to coast overflow is one that runs the full length of the back wall? If it is on a sidewall, it will be noisier and the wave will be shorter because the overflow will get no water and drain and then a sudden surge when the wave hits, absorbing a lot of the wave energy in the process. How much of a problem this will be largely depends on how strong the return pump is and how fast the overflow empties as a result.

It is true, they work very well for anemones both due to the type of flow and being very safe since the pump is shielded in the box.

I would ideally have an extra half inch from the top of the desired wave to the edge of the tank.
 
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