Koralia's

[schneijt]

They seem to have more of a "Y-shaped" flow pattern than a cone-shaped one. So twist them around a bit and play around with placement on the glass and you'll find a setup that works the best for you.

-Joe

[pogodzib]

I got 2- #4s also yesterday and agree that the flow pattern is much more dispersed so you don't get the jet effect. I didn't have the time last night to play with it either, but don't think that the 4s would be any problem for you.

[Jrmass]

Alright you guys talked me into it. Think I'll head over either today or next Friday depending on how much time I get today.

[schneijt]

Let's put it this way: I've got two #4's in my 75gal sps tank, and I think another couple wouldn't hurt, since I could still use some more flow. :-)

-Joe

[Jrmass]

You talked me into the 4's Joe and I'm glad you did... **** those things are impressive. HUGE amts of flow directly out of the pump but, spreads out very quickly which is EXACTLY what I was looking for. I've even since retired out both of the MJ1200's I had in there. Although those will be going to a good home in my frag tanks once they are started. Thanks again Matt for holding onto these for me.

Jason

[carym]

Ok, I think I have mine adjusted now, I got 2 from OTP's and 1 from Dr Fosters (had a gift certificate from christmas), got some tweezers, scissors and a phosban reactor as well. I put two in the corners and one in the back behind the rocks, I do have one of them on a timer and it working pretty good, a little chatter on startup but it is running.

I was worried because when I first tried them on the timer I have it didn't work, so 2 are running 24/7 and 1 on timer with two other MJ power heads for Wave action. I am going to try and get a second one the timer as to get better wave action then just continous flow. The one behind the rocks I will need to play with because it isn't attached to the glass just laying on the rocks and I don't like that but what can you do.

[schneijt]

People recommend that the Koralias not be used on timers. They rattle on startup, and apparently that will get worse over time and possibly damage the pump. I remember a bunch of people saying not to "control" Koralias on Reef Central a while ago. Maybe that thread is still around somewhere if you search for it.

-Joe

[carym]

I know I saw something about the rattle but I didn't see anything about it getting worse, I guess I see it as ok it rattles as long as it doesn't get worse then its ok, I can deal with a little rattle, I am hoping it gets better. If not I will just have them on all the time, then I will definitely keep the MJ in there for wave action.

[luvmylo]

seio's work great on timers. I know they are larger but work well

[Afish4u]

yeah no for the timers now also. I got my k's when they first came out. and so the wavemaster went bub bye. but someone was talking about a controller for the k's that was coming out.

[carym]

I think Brian mentioned it. I haven't seen one yet though and I did some searchs.

[schneijt]

What you need is a controller that slows but doesn't completely stop the pump; I think the Seio controller might do that, but I'm not sure. I just have mine running 24/7.

-Joe

[carym]

I have seen multiple items to watch out for with these on timers:

1) Chatter on startup
2) fish or invert's getting caught in prop.

Well they have guard that can be placed over the prop's now so, I am not sure if that is as much concern. So, only concerned with the startup chatter, so any experience with it actually causing problems with the pumps or it just annoying?

[Hop]

I had one progressively get worse on a timer until it quit... So I have them all on w/o the timer now. I figure I'll just save for some vortecs

[carym]

Well took them off the timers so they are going to be running 24/7.