NOT A FERTILIZER: Purple Up™ encourages the growth of desirable pink and purple coralline algaes not nuisance algaes not nuisance algaes.
UNIQUE DUAL METHOD APPROACH TO CORALLINE ALGAE ACCELERATION:
IONIC CALCIUM: Immediately raises dissolved calcium levels in your aquarium water. 10 MICRON ARAGONITE: Targets the live rock surface, where it dissolves in situ, delivering calcium, strontium, magnesium, and carbonate right where it's needed.
IODINE REPLENISHMENT: Purple Up™ also replenishes iodine, an essential element for coralline algae tissues that becomes quickly depleted in closed systems.
EASY TO USE: One bottle of Purple Up™ repaces the typical multi product recipe for successful coralline algae growth favored by advanced aquarists.
CONTAINS SUPER SEA CALCIUM™: Natural calcium derived from pristine, tropical oceans.
Questions on Purple Up 16 oz., by Caribsea
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Excellent for Coraline algae Review by ANDY
This product stimulates the growth of Coraline algae via ionic calcium balance. Very Recommended! (Posted on 10/26/2015)
good product Review by Anthony
Great stuff coralline grows quick when you have some started already (Posted on 3/1/2015)
Works Review by Mark
I've used other brands, but this is the one that works the best. Will only use Caribsea. (Posted on 11/17/2014)
Love it Review by Jeremy
Greatest calcium supplement I have ever used. I highly recommend it. (Posted on 9/29/2012)
Be very, very careful! Review by wks01954
Ive used Purple Up in the past but not for the last two years. I also had two Sea Hares that Ive had in my tank for over a year. They were algae tigers. After the second dosing of Purple Up, the next morning one of my Hares was dead. I then dosed again and the very next morning my other Hare was dead. Hum?
You do the math.
The guys at Caribsea told me that mollusks cant take high calcium levels and that the first two doses caused a calcium spike too high for the Hares to handle.
Caribsea did offer to replace my hares.
Just be careful with your dosing method. Maybe drip?
Purple up does a great job for your coraline algae. (Posted on 1/22/2009)