How much current is too much?

[Brooxe]

I have 2 Koralia 3's in my 55.

I have 1 pointed toward the back and another on the other side pointed at the front.

Everything seemed to be just fine and then I finally added two clownfish and they seem to be fighting the current constantly unless they are between rocks.

Is this too much current? Should I only be running on Koralia?

Thanks!!

[Guygettnby]

current all depends on what you want to keep in the tank. different corals and such need different amounts of flow. so i guess give us some info on your tank, stock list and such so we can help further.

[Brooxe]

I am mostly keeping fish only right now.. however, I have a couple small aneomies that came on the LR.
Right now I have a CUC with four shrimp, an emerald crab, and bunch of snails and hermits.. and two small clowns.

I wish that that I could just adjust the flow on the Koralias.. !

[Cbravo212]

The clowns are out "battleing" the current b/c they choose to. Mine will fight the flow right in front of the powerheads and then ride the wave to the other side. Without any other pumps, you have about a 30X turnover. I have seem many people with as much as a 60X turnover.

Edit: Put one on each side facing each other. This will give more turbulent flow that all sea life likes.
HTH

[der_wille_zur_macht]

Originally posted by Cbravo212
I have seem many people with as much as a 60X turnover.

Go hang out in the SPS forums - 80x is common, and many people have 100 - 150x. The "turnover" rule of thumb starts losing meaning when you get into prop pumps, waveboxes, etc. anyways.

To the OP - think of it this way. The natural reef those clowns came from likely had many, many, many times the water movement in your tank. Rather than being abused by the current you do have, those clowns are probably wondering why things are so calm.

[bimmer01]

+1 with what Cbravo212 said. My two clowns are always fighting the current. It does appear that they choose to swim again the current and when they dont, they swim near my mushroom.

[Guygettnby]

Originally posted by der_wille_zur_macht

To the OP - think of it this way. The natural reef those clowns came from likely had many, many, many times the water movement in your tank. Rather than being abused by the current you do have, those clowns are probably wondering why things are so calm.

I love how you made that sound

on a side note i do agree that is not too much flow. but all in all i think again it depends on what your going to keep in the tank.

[Whys]

Originally posted by der_wille_zur_macht
To the OP - think of it this way. The natural reef those clowns came from likely had many, many, many times the water movement in your tank. Rather than being abused by the current you do have, those clowns are probably wondering why things are so calm.

Aren't most clowns tank raised?

Sorry, but you don't leave a lot of openings. I gotta find them where I can.

To the OP - I'm just teasing der_wille, you're fish are probably fine.

[der_wille_zur_macht]

Ah, but "came from" could be interpreted to mean "naturally evolved on." So I'm safe.

[WaterKeeper]

Evolved, I so antiquated that I remember when I would have replied a minimum of 10X and ideally 15-20X.

[der_wille_zur_macht]

It hurts me a little on the inside to see myself using that word, but hey - I'm trying to get outta the hole I already dug.

[Whys]

Originally posted by WaterKeeper
Evolved, I so antiquated that I remember when I would have replied a minimum of 10X and ideally 15-20X.

Just because it worked before doesn't mean it still can. I blame Special Relativity.

[Whys]

Originally posted by der_wille_zur_macht
It hurts me a little on the inside to see myself using that word, but hey - I'm trying to get outta the hole I already dug.

Where I come from, your retort was both fair and unassailable. At best, I get half a point. But I'll be watching...

[Brooxe]

Originally posted by der_wille_zur_macht
Go hang out in the SPS forums - 80x is common, and many people have 100 - 150x. The "turnover" rule of thumb starts losing meaning when you get into prop pumps, waveboxes, etc. anyways.

What exactly are we talking about "turnover"? What is the calculation to determine what my turnover is?

[RiOnRoxXx]

Originally posted by Brooxe
however, I have a couple small aneomies that came on the LR.

A little off topic of the flow/turnover rate. But this stuck out to me. Can we get a picture of these anemones? If it came with the LR I'm thinking it may be a pest nem.

[PRDubois]

2 K3's should be fine.

[jenglish]

Originally posted by Brooxe
What exactly are we talking about "turnover"? What is the calculation to determine what my turnover is?

Turnover = GPH flow of powerheads, return pump and any CLS. Do not include flow rates from things running in the sump or anything HOB (which is creating flow but not worth counting). If you have a 75 gallon tank, your return pump is 250 gph and you had 2 250 gph powerhead (750) you would have 10x turnmover

[der_wille_zur_macht]

Originally posted by jenglish
Turnover = GPH flow of powerheads, return pump and any CLS. Do not include flow rates from things running in the sump or anything HOB (which is creating flow but not worth counting). If you have a 75 gallon tank, your return pump is 250 gph and you had 2 250 gph powerhead (750) you would have 10x turnmover

+1

It's typically expressed in "tank volumes per hour" to complete Jeremy's thought. If you have a 75g tank and 750gph, you have 10 tank volumes per hour, or 10x turnover.