Reefmack
In Memoriam
Hydor Koralia 1 here also. A lot depends on what you'll want to keep. If you'll be keeping a lot of soft corals like lps (torch, frogspawn, etc.) and leathers up on top, the #2 may be too much flow. If you'll eventually be keeping SPS the #2 may be better. It may be safer to start with a #1 and upgrade later? Just my own opinion on it.