how long till phospure works?

[bonn70]

Hello, Well I have had the usual cyano outbreak associated with my tank cycling and a bit of overfeeding.I cleaned up all I could get to on the sand bed and some on my rock, did a 50% w/c., and then started running phospure.I have also cut down on my feedings.How long until I see results? I see new areas of cyano showing up again.It has been about a week now.Water chemistry below.No phosphate or calcium tests yet.

 

ammonia-0

nitrate-0

nitrite-0

ph-8.4

alk-test high on dip strip test , no numbers given

temp.-79

salinity-1.026

[Urchinhead]

adjust your flow so you get more over the sand bed. Continue manual removal. Consider using erythromycin to treat it. Hunker down for a bit because its going to take a while. If you do a 50% water change then you lower phosphates by 50%ish so there's still stuff there.