am3gross05
Member
i am having a problem wiyh cyano. ichanged the amount of time my lights are on. the halideswere on for 12 hours and now they are on for 8. i have 250 watt on one side and 175 on other.i havea 75 with a 29 gallon fuge. i changed over to ro water 2 weeks ago and still no change. ive done a 5 gal water change on sunday. i have a rio 1100 on its way to tryand improve water movement. right now all i have is the return from the sump which is putting out about 692 gph. could the water movement be causing the problems?