prestone driveway heat?

[Sizzlersonthebrain]

ok so do I need to do anything special to use it? or do I just dissolve it in freshwater and then dose it like I would the sea chem products?

[Zibba]

Just remember to use about 1/5th less than what is recommended for Dow Flake (which is 2 cups) per 1-gallon of RO/DI water.

[Aussie]

On a related subject: Where do you get Dow Flake or Prestone in Minneapolis? I went to about 3 hardware stores this weekend and c/n find either.

[sea monkey]

Just as a warning . dow stopped producing bromide products and because of that they stopped removing bromide from their calcium chloride in 2006. this is particularly important to people who use ozone.
here is a good thread on the subject .
http://www.reefcentral.com/forums/showthread.php?s=&threadid=1166963

prestone driveway heat is repackaged dow product. in fact a large percentage of calcium chloride products out there are repackaged dow.

[Sizzlersonthebrain]

bromide used to be a popular supliment for reefs...

I dont use ozone so will this have any effect on my tank?

[sea monkey]

bromide used to be a popular supliment for reefs...

I don't use ozone so will this have any effect on my tank?

bromide went up from like 100ppm to like 8,000 PPM. the effect this will have is really unknown. I would imagine it would depend on if your salt mix is already high, how much you add and how frequently you do water changes.

Personally id wait and let other people be the guinea pigs or find a different brand. Maybe try tetra if you can find it. Tetra uses a better method for producing calcium chloride to begin with and contains low levels of bromide.

[bunglito]

I've bought prestone driveway heat at Wal Mart in bloomington and have used as part of Randy's two part for 2 years now. Now my tank is relatively low in demand for calcium compared to most of the sps tanks on this site. I just have couple sps, couple lps, and a few softies.

This is a good calculator for initial dosing:
http://home.comcast.net/~jdieck1/chemcalc.html