What is the grey powder

[PCIALF]

looking stuff (nice proffessional description) on my mechanical fitler pads it mostly rinses off. I am assuming it has something to do with my CA reactor

Am I doing something wrong?

All the numbers seem right on I noticed I usually get a week out of my sock but only got 4 days till plug?????

The only thing I changed recentley was lower the effluient to 6.6 from 6.7 could that be it I thought most were running it at 6.6

 

[Gary Majchrzak]

Are you sure the grey matter has to do with your Ca reactor.... or could your aquarium be maturing? I've never associated it with my calcium reactor. When I see grey powder it's always been detritus. Poop. The end of the circle of life. Get rid of it ASAP.

 

[PCIALF]

Well I am not sure

It did all rinse off. The tank looks perfect! It was just something I never saw.

 

[PCIALF]

WaterLog Report for Tank - 120 RR
Alkalinity 3.88
Ammonia 0
Calcium 420
Temp 79.5
PH 8.2
Nitrate 0.00
Phosphate 0.0
Salinity 1.023
dKH 10.66

 

[MarksReef]

I'm with Gary on this one. Fish poo and a maturing tank.
I keep my salinity at 1.025-26

 

[Hound]

I agree with the salinity .023 is a bit on the low end for corals.....024-.026 is usally the normal

 

[PCIALF]

I was told .023 on salt because of the fish by Tom when I got in the hobby

hmmmm

 

[MarksReef]

I dont think any one in the U.R.S. keeps there salinity at 1.023

 

[dalbrecht]

I'm sure some do, ( I kept it there for approx 6 weeks at one point). But salinity that low isn't normal for reefs.