DowFlake or PelaDow - Where to Buy?

[Guest oracleoca]

Does anyone know where I can buy some DowFlake or PelaDow so I can raise the calcium in my reef tank? I live in Maryland.

 

Thanks

[JC Pollman]

I got mine at Walmart. It is called: Prestone Driveway Heat and comes in a 9.5 lbs container. Look in the auto section. Been using it for a year with no problems. I do not have SPSes, but I use a kalk reactor, so keeping the calcium up is not a problem. I used it initially to raise the calcium, but after that the kalk has pretty much held it steady. I only check calcium about once a month and make adjustments.

[michaelg]

I've been getting it from Buckeye field supply when I order replacement filters for my RO/DI. They have DI media as well and refillable cartridges.