Koralia

[normanknight]

I know a lot of you use the Hydor Koralia pumps for good circulation. I just installed a Koralia 2 to replace my Koralia 1. My question is, how many of you use the flow concentrator nozzle that comes with the pump. It seems to move more water without it, but I don't know which would be best. Any thoughts?

 

[rostato]

I have 2 koralia 2's in my 46 and run both without. They seem to move more water in different directions without them.

 

[hl649]

I've got both a 3 and a 4 in my 70. When I initially put them in the tank I had the flow concentrator nozzles on. I had a lot of problems with sand movement. It seemed that no matter where I pointed them I had movement of sand over time. I removed the nozzles and now I have a much more gentle movement of water throughout the entire tank. If you are looking for an overall flow throughout your tank I would leave them off.

 

[normanknight]

Thanks
I had a feeling that leaving them off would be the best bet, so I shall now remove the one I put on. I want good, even flow, but not a blast. I think they are excellent pumps.

 

[fishygurl]

i have a #3 and a #1 i believe and i leave the nozzles on (just because im worried i might have stupid, fish, snails, shrimp) (i know the shrimp walk on it all the time and stick there arms in it to catch food that was sucked in

 

[nycbob]

i dont use the nozzles either in my 3 koralias. never had a problem with any inverts walking in since the flow is too strong. i hv seen my algae blenny tried to get in, but got blown away by the strong flow.

 

[keith burn]

I have 4#4 and 3#3 and run all with out the nozzles on them.(and love them).

 

[normanknight]

Thanks everybody. It seems that everyone is pretty much on the same page. I agree. They are great little pumps.