How often do I add this to the tank to get it cycled? Is it an everyday thing, or once a week?

Every day, per the instructions.

Instructions say "turn off uv/ozone" before adding. i have fluorescent lighting in a freshwater tank. should i turn off the fluorescents?

The reason to shut off the UV is because the product contains specific bacteria. In our tanks, we do not shut off the fluorescent lights, only the UVHere is a link to their website http://www.seachem.com/Products/product_pages/Stability.htmlNan

Will having this shipped to a currently cold/freezing location destroy the beneficial bacteria?

It should not, the bacteria is in a dormant state wont wont really be living till you put it in your tank.

How much would I need to cycle two 5 gal tanks?

As much as you can afford. I add it periodically can my tank and been cycled for a couple months. Like with large water changes or introducing new fish.

ASIN	B0002APIJ6
Allergen Information	BPA-Free
Best Sellers Rank	#493 in Pet Supplies ( See Top 100 in Pet Supplies ) #2 in Aquarium Water Quality Testing & Treatment
Brand	Seachem
Brand Name	Seachem
Country of Publication	USA
Customer Reviews	4.7 out of 5 stars 4,672 Reviews
Global Trade Identification Number	00000116012508
Item Form	other
Item Type Name	Aquarium Conditioner
Item form	other
Liquid Volume	100 Milliliters
Liquid volume	100 Milliliters
Manufacturer	Seachem
Pet Type	Fish
Target Species	Fish
UPC	000116012508 000116008211
Unit Count	100 Milliliters

Seachem Stability 100 ml, Establishes Biofilter & Prevents New Tank Syndrome In Freshwater And Marine Aquarium, White, 125, Stability 100ml

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