Hydor Koralia Nanos not enough

[Jared J]

Ok, these Koralia nanos I just got really stink imo . Maybe it's me but they definitely aren't what I'm used to. They say 240ghp but I don't see where. You can barely feel the water a couple inches in front of the head. I don't see how they will create much current across a tank. I guess I may have to try a Koralia 1.

I guess this is learning .

[Neuticle]

don't know what size tank you're working with, I just ordered a pair of Koralia 4's for my 100 gal. Heard they were big and ugly and usually don't last much more than a year, but the price was right...

Good thing I didn't skimp with the nano's, lol, that would have been a disappointment in my tank. I appreciate the info!

[Jared J]

They are going into a 30G tank. Like I said I guess I'm just used to powerheads. At least with those you can feel the water coming out of the nozzles. These nanos you can feel the waterflow to about 1 inch away. It just seems too diffused for me.

[Neuticle]

Got my Koralia 4's, if you aim them right you will have a tornado in the tank... lol

I finally figured how to aim them without making the water flow too violent, the anemone is back out and looks happy, they are definitely plenty for my 100 gal tank.

[ckusnierek]

Well an 30g is borderline nano those pumps were reallt intended for 10,15 and maybe 20g.


I put a K1 in my 30 FWIW.

You cannot feel it because its such a wide stream. the K1 I have has the corals swaying all over... If you want a "jet" of water buy a maxijet.

[pipermacwills]

I have a 29 and used 2 Koralia nano's to get the flow right. The last post was correct, imo, it's a real wide stream. If I don't set them just right the corals all get very unhappy because of too much current.

[Jared J]

I think the nanos were just on the edge of small for my tank. I picked up a Koralia 1 today and the flow seems much better.