Hydor Koralia nano, 1, 2 and so on

[blindskate]

Wondering, who has one? How much do you like it? And do you think it's helpful in your tank?

I love it, I got the Hydor Koralia 1 for my 20 Gallon, I was told it was too big unless I pointed it in a corner and let it bounce off the sides and my fish love it! They just sit in front of the current and let it wave through them. It's helped alot in the circulation of my water and my "red slime" has gone away with help of this and the phosphate pack I was told to buy.