Marine Depot offers FREE economy shipping for most products when you spend $29 or more! Your order will be delivered in up to 7 business days after it ships out. Economy shipping methods include UPS Ground, USPS First Class, and/or SurePost. You can also upgrade your shipping to UPS Ground which speeds delivery to 1-5 days. A shipping upgrade is $2.99 for orders under 20 lbs, $3.99 for orders 21-40 lbs, and $4.99 for orders over 41 lbs. Orders placed before 10:30 am PST Monday-Friday are shipped the same day. Free shipping is only available within the contiguous United States. Frozen foods, live foods, and items shipped directly from the manufacturer do not qualify for this special offer.
Free Upgraded Shipping For Orders $250+
Most orders over $250 qualify for FREE upgraded shipping! Your order will be delivered 1-5 days after it ships out. Thanks to Marine Depot's two strategically located warehouses in Nevada and Georgia, over 90% of shoppers receive their orders within 1-2 business using this level of service. Orders placed before 10:30 am PST Monday-Friday are shipped the same day. Free shipping is only available within the contiguous United States. Frozen foods, live foods, and items shipped directly from the manufacturer do not qualify for this special offer.
$2.99 Flat Rate Shipping For Orders Under $29
Most orders under $29 ship for only $2.99 using a mix of economy shipping methods including UPS Ground, USPS First Class, and/or SurePost. Your order will be delivered in up to 7 business days after it ships out. Orders placed before 10:30 am PST Monday-Friday are shipped the same day. Our $2.99 flat rate shipping is only available within the contiguous United States. Frozen foods, live foods, and items shipped directly from the manufacturer do not qualify for $2.99 flat rate shipping.
Frozen foods are delivered 1-3 business days from the day your order ships. Frozen foods are shipped every Monday and Tuesday. Shipping cut-off is Tuesday at 10 am PST (1 pm EST). Orders received after 10 am PST on Tuesday will be shipped the following week. Shipping and handling is a $19.99 flat-rate charge so you can order as much or as little as you like.
Orders not shipped within the contiguous United States—the 48 U.S. states on the North American continent south of Canada plus the District of Columbia—are considered international orders. International orders are not eligible for Marine Depot’s free shipping promotions and additional surcharges may apply. It is important to note that not all products we carry can be shipped internationally. Any brokerage fees, tariffs and/or taxes will be billed to you directly by the shipping courier. International customers must use the same billing and shipping address.
Description: Kent Marine Super Iodine Supplement provides bio-available iodine to reef inhabitants. Although present in salt mixes, iodine is rapidly used up in the system, and removed through protein skimming, ozone and filtration. Super Iodine Supplement supplies iodine needed for proper growth and health of invertebrates and algae. It contains a safe, stabilized form of iodine which will not destroy system bacteria, as some competing products will. It contains no organic forms of iodine which can pollute the system. Kent Marine Super Iodine Supplement is a proven performer!
Directions: Add 1 teaspoon (1 capful or 5 ml) per 50 gallons (190 l) every week or 8 drops each day.
Considerations for use: 1) First use an excellent grade of synthetic marine salt (of course Kent Sea Salt is the finest available, but there are some other excellent salts on the market). Some salts are made from evaporated seawater and contain dead plankton and other heavy organics that will foul the water from the beginning. Cheap salt is no bargain! For optimum results, use water prepared by reverse osmosis (particularly in mini-reefs), however dechlorinated tap water will work.
2) Use Kent Marine Aquarium pH BUFFER or Superbuffer-dKH to maintain alkalinity at about 10 dKH (do not allow it to go below 8 and don’t exceed 12). This will provide proper pH stability, and still not cause heavy precipitation of important minerals, such as calcium and strontium.
3) Use Kent Kalkwasser Mix, Concentrated Liquid Calcium, or Turbo-Calcium to supply needed calcium. Use Strontium and Molybdenum or Turbo-Strontium to provide heavy amounts of strontium. Kent Coral-Vite will supply rubidium, lithium, barium and other important minerals as well as essential vitamins to the reef. Coral-Vite, Essential Elements and this product are designed to work together in a reef environment.
4) Use reverse osmosis water for topping off for evaporation.
5) Use this product regularly to maintain proper iodine levels, to replace that which will be used by fish and algae and removed by skimming, ozone, and filtration.
Kent Marine Aquarium Supplies Kent Marine was established by aquatic hobbyists who saw a need for products that aid the user in creating the most natural enclosed marine and freshwater environment possible. From vitamin and mineral supplements to nutritional products and filter media, Kent Marine set the benchmark and was one of the first in the aquatic industry to provide these unique solutions. For the past 15 years, Kent Marine has been committed to providing effective ways to keep beautiful, healthy aquariums. Through continuous research, testing and development, new products like salt mix, scrapers and reverse osmosis filtration were brought into the Kent Marine family.
Ask a Question Earn 15 Points when you answer a question
I have used Kent's Super Iodine since 92 when I first started reef tanks. Have never not used it. I dose my tanks 8 drops per 50gls everyday and when I frag zoanthids I dip them in to a straight solution and let them sit in the dry for 15-30 seconds before placing them back in the system. Always ope...Read More
I have used Kent's Super Iodine since 92 when I first started reef tanks. Have never not used it. I dose my tanks 8 drops per 50gls everyday and when I frag zoanthids I dip them in to a straight solution and let them sit in the dry for 15-30 seconds before placing them back in the system. Always open within a couple hours and completely healed with a couple days. Awesome stuff. Also use it along with Flatworm exit to cleanse new zoas of any pests before placing them in my tanks.Hide
If there is one thing I've learned in my brief year and a half of being a marine aquarium owner is that iodine must be a regular part of aquarium care and health. My son and I have noticed that if we go too long without adding iodine things start to wither and die i.e. shellfish and certain corals. ...Read More
If there is one thing I've learned in my brief year and a half of being a marine aquarium owner is that iodine must be a regular part of aquarium care and health. My son and I have noticed that if we go too long without adding iodine things start to wither and die i.e. shellfish and certain corals. Kent Super Iodine has been a regular part of our aquarium care almost since the beginning and I couldn't think of a better more important chemical and nutrient to have at the ready!Hide
Everything that I have read says I need Iodine for my aquarium, then every pet store I went to sales Kent. I'm a beginner and want the best I can afford for my aquarium, which isn't very much just getting started. I really look into things before I buy them and every review about Kent was good. The ...Read More
Everything that I have read says I need Iodine for my aquarium, then every pet store I went to sales Kent. I'm a beginner and want the best I can afford for my aquarium, which isn't very much just getting started. I really look into things before I buy them and every review about Kent was good. The price isn't bad at all. Buying online saves alot of money.Hide
Most orders under $29 ship for only $2.99 using a mix of economy shipping methods including UPS Ground, USPS First Class, and/or SurePost. Your order will be delivered in up to 7 business days after it ships out.
free shipping for orders $29+
We ship 99% of the products we carry for free within the contiguous United States using a mix of economy methods including USPS First Class Mail, SurePost and UPS Ground. Your order will arrive in up to 7 business days. Just spend $29 or more!
free faster shipping for orders $250+
Over 90% of shoppers receive their orders within 1-2 business days. Upgrade from free economy shipping to faster shipping for only $2.99—or spend $250 and we'll upgrade you automatically!
need your order even faster? no problem!
Expedited shipping services are available for most products if you are in a hurry. Get guaranteed delivery in 2 business days, 1 business day, or next day by 10:30 am. Costs vary by location.
buy it today and we'll ship it today
Same-day shipping is available Monday-Friday for most products—place your order by 10:30 am PST. Pre-ordered and back-ordered items do not qualify, nor do drop-shipped, live, or frozen shipments.
live plants, live foods, and frozen foods delivered to your door
We ship live plants, live foods, and frozen foods within the contiguous United States. Each of these categories is subject to its own $19.99 flat-rate shipping fee to cover the special packaging and/or expedited shipping costs required to ensure safe delivery. Orders with 12+ live plants ship free!
Return any new and unused item within 60 days for a full refund. Having difficulty with a product? Contact us to speak with an aquarium expert. If you need a replacement, fill out this form.
A small segment of the 180+ brands we carry require that customers contact them directly if/when problems arise. You can view the full list of those brands and get their contact info here.
We are unable to accept returns of Digital Aquatics, Neptune Systems, Vertex Aquaristik, Aqua Illumination (AI), EcoTech Marine, GHL, or Seneye products once the manufacturer's packaging seals have been broken.
Marine Depot is an authorized reseller for every product we carry. That means when you buy aquarium supplies from us, your products are not only backed by our own 60-day return policy, they also carry full factory warranties, where applicable. Some items have a 1-year warranty, others have limited lifetime warranties. Warranty coverage varies from manufacturer to manufacturer, so please read the product description of the item(s) you are considering thoroughly for details or contact us if you have warranty questions.
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Earn 5 reward points for every $1 you spend to get 5% cash back Most Products
Earn 1 reward point for every $1 you spend to get 1% cash back Abyzz, American Marine, AquaIllumination, AutoAqua, CoralVue, Digital Aquatics, EcoTech Marine, Giesemann, GHL, Hanna Instruments, Hydor, IceCap, Innovative Marine, Iwaki, Kamoer, Kessil, Klir, Korallen-Zucht, Maxspect, Mur-lok, Nano Box, Neptune Systems, NYOS, Oceanbox Designs, Pax Bellum, Radium, Red Sea, Reef Glass, Reef Octopus, Seneye, Somatic, Tunze, Vertex Aquaristik, and Waterbox Aquariums
You can also get bonus reward points by purchasing select items during special sales and promotions.
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