how do u know?

How do u know if u have to much flow in your tank......i have a 55 gallon tank with 2 hydro Koralia #2 power heads in my tank....yesterday i picked up 2 corals A Green Eye Zoas with like 15-30 heads, and also a radioavtice brown with green eyes...looks really cool...the green eye zoas opened up...but the radioactive's wont open....is it because of to much flow? my lights are pretty new...T5 HO quad lighting 12k blue 10k daylight

 

2 K2's in a 55 is definitly not too much flow unless you have the new zoos an inch away from the direct current output from the powerhead. Why dont you run any actinics? Two 10k's and two 12k's seems like it would be a very bright white / yellow tank.

~Will.

 

the 12k's are actinics the 10k are daylights

 

12k isn't really an actinic bulb at all . . . are you sure your reading the bulb correctly? I have ATI aquablues that are 12K and they are extremely white. 20K is more towards the blue spectrum as are 420/460 actinics.

~Will.

 

yup your right sorry about that i was reading the wroung thing...i have 420