Cal, Alk, Mg in established systems

[Myka]

Thanks for your replies, but not really the point of the thread!

[whatcaneyedo]

I usually add about 2 cups of 9:1 Mg salts to +20gal of water change water then slowly use it up over 2 weeks. I've only added 1 tbls of baking soda to my tank in the last two years. The last time I needed calcium chloride was probably 3 years ago. The rest is handled quite adequately and hassle free by a kalkwasser and a calcium reactor. 240gal system. Sorry for the hijack.

[fishytime]

I havnt even checked V2 for any of the big three in a year, but before I moved V1 was consuming close to a gallon of Randys recipe of Ca and DKH in a week and Mg was something like a half a cup every two weeks..... Mg dosed manually and Ca and DKH dosed with a profilux ..... Mixed reef, three years old

[Myka]

Originally Posted by fishytime

V1 was consuming close to a gallon of Randys recipe of Ca and DKH in a week and Mg was something like a half a cup every two weeks..... Mg dosed manually and Ca and DKH dosed with a profilux ..... Mixed reef, three years old

Ah ha! Some infos! Now you're going to make me do the math eh?

[kien]

Originally Posted by fishytime

I havnt even checked V2 for any of the big three im a year, but before I moved V1 was consuming close to a gallon of Randys recipe of Ca and DKH in a week and Mg was something like a half a cup every two weeks..... Mg dosed manually and Ca and DKH dosed with a profilux ..... Mixed reef, three years old

Does this mean you are not dosing in V2???

3 year old 300g system: aprox 250mL alk and 200mL calcium (2 part) per day.

[fishytime]

Originally Posted by Myka

Ah ha! Some infos! Now you're going to make me do the math eh?

Well I am at work and on my I-phone.... So ya.... You can do the
math

Originally Posted by kien

Does this mean you are not dosing in V2???

3 year old 300g system: aprox 250mL alk and 200mL calcium (2 part) per day.

Nope..... Havnt tested or dosed a thing in a year.... Aside from some zeo type foods

[Lance]

90g reef: 200ml of BRS soda ash & 200ml of calcium chloride per day

225g reef: 250ml of soda ash & 200 ml of calcium chloride per day

Mg: aprox 150 ml per week per each tank

10% water changes twice a month

[KevinK]

hmm,

why am I using so much,

baking soda 590gr/gallon mix in 5 gallon can (3 gallon mixed up at a time), I dose about 620 ml a day – spread out over 8 dosing's

Calcium:

I was mixing 500 gr/gal mix in 5 gal can (3 gallon mix at a time) dosed about 610 ml a day – spread over 8 dosing’s

but Calcium was rising and had lots of precipitation, so went with 20% less calcium at the same gallon and dose the same ml at this time

I changed and went lower on calcium yesterday so have to se upcoming week – weeks to find out if this is better


I have about 400 gallons of water in my system,

70% SPS and 30% LPS

tank is about 2 years, SPS corals are medium size