Re: High KH on new tank

My tank had similar issues when first set up and went up to 20 dKH. It did
drop on its own after about 4 weeks. Its worth noting that Salifert
Phosphate readings become erroneous if dKH>20 and you're close enough here.

You needn't worry too much about the hardness as the tank is still cycling.
Do you have a calcium test kit? If you're monitoring hardness, you may as
well monitor calcium also.

Are you using RO water? your nitrate readings may wish to see themselves
lower once the tank has cycled. If you're not using RO or DI water you might
want to find some way to reduce nitrates (and phosphates) from your source
water.



"J&T" <[EMAIL PROTECTED]> wrote in message
news:[EMAIL PROTECTED]
> Have a new reef tank which was filled 5 days ago - water tests seem ok
> except for high KH which I'm not sure what to do about. It's possible too
> much buffer was added by the supplier who installed my tank.
>
> 100 gallon tank with Ratz sump/trickle filter/skimmer/calc reactor. Tank
> maturing with 100lbs fresh live rock and rotifers, flow rate 2000
ltrs/hours
> plus additional flow off 4x1800ltr/hr power heads. Metal Halide & marine
> blue tubes for lighting.
>
> Test readings at 5.30pm today were:
> Temp 26deg C
> SG 1.025
> PH 8.3-8.6
> Total Ammonia 5.0mg/l
> Nitrite 0.3mg/l
> Nitrate 12.5mg/l
> Oxygen 5.0mg/l
> Phosphate 0.25mg/l
> Carbonate Hardness  19dKH (340ppm)
>
> Can anybody suggest what action do I need to take? ..... if any
>
>