I am running a 120 gallon 22" tall tank with one koralia 4 mounted on back left side facing on downward angle. Any suggestions on how much more water movement is suggested for corals and fish. I was thinking of one more koralia 4 but don't know where it should be placed. I am running an eheim pump in the sump for both returns with little return pressure.
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how many powerheads are enough?
- Thread starter jamman
- Start date
Edwardw771
NJRC Member
try a hydor 6, 7 or 8 they are way more powerfull. 2 4s is not alot of flow.
hydor 6,7,8? time to hit google, i didn't know they got bigger than a 4
N
njstillwell
Guest
If you rally want flow go with a tunze 6060 or above. The only thing that kinda stinks is its not controlable with the 6060. I got 3 korallias 3 and 1 korallia 4,and a tunze 6060 all positioned in rotating flow
for what its worth, what is more important is non-linear flow and wide, dispersed flow. corals do not like flow that is constant, directional and strong (like a stock Maxijet 1200 8 inches from a coral). In the reefs, different currents flow in alternating waves and sometimes in reverse like the tides. a linear flow will harm corals if it is too powerful. a good random and turbulent flow can be achieved by facing two powerheads into the front glass so they mix and become turbulent going back towards the middle of the tank. A third can be pointed at the center of the tank, crashing through the first two currents
placing powerheads on timers or wavemaking strips will also achieve these results, but some powerhead manufacturers recommend against this due to the build of the magnets and/or impellers and shafts.
as mentioned before, different corals prefer different flows and patterns, they need this to prevent accumulation of detritus and waste products on their bodies, most coral's shape will also show you what kind of flow pattern they can take.
a very generalized SPS requirement:
tabling forms- high light, high turbulent flow, can take a little linear
thick branchy- can take some linear flow, better with alternating
delicate branchy (montiporas digitatas, fire coral)- lower flow, random current
encrusting- low flow, some random
for LPS and softies, I'll let Bill and Jeff chime in.
placing powerheads on timers or wavemaking strips will also achieve these results, but some powerhead manufacturers recommend against this due to the build of the magnets and/or impellers and shafts.
as mentioned before, different corals prefer different flows and patterns, they need this to prevent accumulation of detritus and waste products on their bodies, most coral's shape will also show you what kind of flow pattern they can take.
a very generalized SPS requirement:
tabling forms- high light, high turbulent flow, can take a little linear
thick branchy- can take some linear flow, better with alternating
delicate branchy (montiporas digitatas, fire coral)- lower flow, random current
encrusting- low flow, some random
for LPS and softies, I'll let Bill and Jeff chime in.
