Powerheads high flow?

[SeriousDude5]

When I look to buy corals online it says something like Water Flow: High. How do I know if they area is getting high water flow? Right now I have 2 rio 800's abd a maxi jet 1200. What way should I position them for the best water flow through out the tank and sgould I be anle to feel the wayrt moving?

 

[ntswift]

I have mine pointing strait at each other to create a crashing effect. If you have three maybe put two pointing towards eachother and the other one I'd put in the middle of the tank on the back pointing to the front at the crash point of the other two. (If that makes sense) Where the two jets crash at, just below it, is where I put my "High flow" corals. I usually sit my "low flow" corals underneath my power heads or I'll put them below the current. Anything else is "medium flow". I could be wrong so if I am someone please correct me. HTH