Strontium and Oceanic Salt

[-=DieselDave=-]

I have tested for strontium twice now once about 10 month ago and once this week both test results were 0-3ppm of strontium, thatââ"šÂ¬Ã¢"žÂ¢s as low as my Salifert kit goes.

So I assume this is an Oceanic salt issue. I have used Oceanic from day one. Some corals grow very fast some grow extremely slow. I have very little, compared to some, coralline growth. I use a calcium reactor with ARM media my levels are below.

Temp = 79-80f
Ph = 8.1 night 8.3day
Calcium = 430-440ppm
Alk = 8.8 - 9dkh
Magnesium = 1350ppm
Strontium = 0-3ppm

Iââ"šÂ¬Ã¢"žÂ¢m going to start dosing strontium to get it to 15ppm, to see what happens.

Anyone else use Oceanic salt and dose or not dose strontium? Have you had similar observations?

 

[-=DieselDave=-]

Bump

 

[Randy Holmes-Farley]

No need to bump in this forum. I work from the bottom up each day, so bumping means I get to it more slowly.

So I assume this is an Oceanic salt issue.

Oceanic says they leave strontium out of the recipe. So if you want strontium, you may well have to add it. I do not know if it is necessary or not, but why target 15 ppm? That seems high.

This article has more info:

Strontium and the Reef Aquarium
http://www.advancedaquarist.com/issues/nov2003/chem.htm

 

[-=DieselDave=-]

Randy, thanks for the link I'll be shooting for 8ppm now.
I think I will be changing brands of salt real soon. Only two water changes away from an empty bucket.

 

[Randy Holmes-Farley]

Sounds good.

Happy Reefing.