Power heads

[imnew2saltwater]

I am currently running two Hydor Koralia Powerheads a 1050 & 1400. my question is should I have them on timers or running constant? my tank is a 24" 60 gal cube.

[SeaHorse_Fanatic]

Run constantly. Flow = oxygenation of your water. No flow = dead fish from oxygen starvation.

Also, I found with HK powerheads, turning them on & off can sometimes cause the impeller to spin backwards.