I need some suggestion.

[MK]

Something bad happens with my SPS's .
All big colonies begin to die from bottom .
I checked, alkalinity level was very low, one week ago I raised level to 8 but fell again to around 4 .
What causes so fast fall alkalinity ? Now I have 6,7 KH / alkalinity around 2,40meg/L
What method now can hold back atrophying of corals effectively ?

Sorry for my bad english,
thanks for any help,

Best Regards
mk

 

[E-A-G-L-E-S]

-daily 2 part calcium/alkalinity dosing(ex.ESV B-Ionic)
-your SPS use up your calcium and alkalinity everyday, so you need to replenish it everyday

 

[MK]

17 colonies around 4-5" big and 26 frags 1-3"big, tank 190gal, you think they resorb so fast alkalinity ?
I don't dose now calcium because is still too high, around 600 ppm .

thanks
mk

 

[Lights Are Bright]

What test kit and are they expired? Also what salt?

 

[MK]

Salifert (exp. 03/2009),
Salt Tropic marine, usually regular but sometimes pro-reef,


regards,
mk

 

[cyclgrl]

You need to check your magnesium levels as well.

 

[Lights Are Bright]

I think because your calcium is so high, your alk is low. Calcium affects alk, if one goes up, the other comes down. Try raise your alk.

 

[MK]

You definitively right Lights Are Bright, this sounds logically now.
Thank you guys