[求助]kaikwasser and ca reactor can use same time ?

[sc]

Hi everyone ,I have a question , because my ph at daytime 8.1 , at nighttime 8.0 ,I live L.A. here fish store told me
ph better keep on8.3 to 8.4 right now I use kalkwasser (KENT) ph.go to 8.3 now nighttime , before I test CA was
over 600 .I know range 400 -450 .right now ca is around 500 . question is should i turn on ca reactor ? also I scare
ph going down ,or my coral they do not has enough ca .How to keep ph and ca on good range ? thank you very much.
180 gallons tank L 60"* W24"*H30"
20 gallons algae tank
40 gallons sump
250w *2 MH light 8 hurs / day
55w*4 blue light 10 hurs/day
15w*1 UV light 4hurs/day
Euro Reef G-2 protein skimmers/ Sedra ksp-3500 power head 350gal/h .1500l/h
Korallin ca reactor / Ehein 1048
Customsealife T3 pump /800gph
Customsealife T4 pump/ 1225gph ( recommended to all the fraind ,this is best pump .even better than Iwaki
so quiet and powerful ,because befors I used Iwaki in nighttime I can hear resonance .right now i only hear water fron
overflw . pump only 30 DB ,I am not sure but very very quiet for sure ,USA mail order $179.99
1/3 HP chiller
Those is my equipment please told me is some where I need change or not enough.I can read Chinese ,but I can not type sorry , Thank you .also looking for L.A.fraind can share info tel 949-6359988 Steven

 

[eli]

Why don't you use Chinese to ask the question
if you can read Chinese perhaps you can type it
I believe if you use Chinese to ask, you will get more responds
well it's just my personal comment