Which Koralia?

[mudskipper1]

Which Koralia model should I get in my 40 breeder mixed reef that has several other small powerheads plus about 250gph return from sump. I am interested in these because they have a wider flow pattern. I was thinking a 1 or 2, but any suggestions would be greatly appreciated.

 

[zach0660]

My friend has a #3 in his 40BR and it is too much flow,, it stirs up the sand and blows it all over. I am considering 2, #2's for my 40BR but I plan on keeping some SPS.

 

[greenmonkey51]

I've got a pair of 4's on my 75g, with LPS and I think its a little too much. I would think that the 2 would give a nice flow without blowing everything around.

 

[mudskipper1]

I might go with 1 #2 as I already have 4 small powerheads, I only have 1 sps and 8-9 polyp/mushroom/softy right now, but I plan to get more as my tank is less than 2 months old. Everything is doing great but there is some detritus building up in a few spots even with CUC so this koralia would just be to add some flow and reduce dead spots.

 

[mudskipper1]

yeah I think a #2 would work great, thx for the responses

 

[balto777]

I've got 2 #1's in my 20H. Turns out to be about 40x turnover rate. I have to point them up in order not to blow the sand around.

 

[yellowwatchmen]

I have one 3 in my 40 and it is great except it is hard to adjust. And if i dont get it right it will slowly move the sand and by the next day you can see the glass. But i am trying to get ahold of hydor to see if they cant send me a deflector since it didnt come with one and all the new ones do.

 

[Reefer Steve]

2x Koralia 4's would work very nice if you plan on keeping SPS, if youd like to keep mostly LPS and Soft stuff just use 2x Koralia 3's.

 

[rholguin]

Reefer Steve- I know this has nothing to do with the pumps but did you custom make your light fixture or did you buy it. I have never seen a fixture with 8 bulbs for a 29g?

 

[pezcubano]

I just put a 3 in my 75G to supplement my 2 Tunze Nanos. My tank has about as much flow in it as I would want right now. I would say that 2 #3s would be about as much as I would recommend in a 75G, so I think with a couple of #2s you'd be fine in a 40G. Depends on what you wanna keep. The Koralia is TOTALLY different with a much wider flow.
I haven't found the perfect spot for it yet, and my sand is getting shifted. I'm going to move them again this week to find the right spot.

 

[GoingPostal]

I just got one #2 for my 33L 48" tank, seems to keep everything in it's half of the tank pretty happy, any stronger and my euphyillas would take it badly, my tanks all lps/softies though. I'm planning on another for the other side.

 

[bpoore89]

I have a 55 and two #4's and it blows the living hell out of my sand, pardon my french. I love them to death but I just cant seem to get it to leave the sand alone no matter where I place or aim it. I contacted Hydor about this plastic thing that directs the flow and just goes on the front but they havent emailed me back and its been weeks

 

[pezcubano]

I didn't install that piece cause I think it will take away from the wide flow the Koralias are known for.

 

[hyperfocal]

Yeah, but if the wide flow is causing sandstorms in a shallow tank it's a fair sacrifice imo.

 

[pezcubano]

touche!

 

[thefishgy18]

Hydor just came out with the Korila Nano. does 200-250 GPH. I have one in a 30L and it does a very good job at keeping the flow going. blows sand a little but in a 40 you should be fine.

 

[bkoz]

I have 2 #1's in my 29gal and its perfect, I wouldnt want more. I also have a MJ900 behind the rocks and 300gph from my return.