Marine Depot offers FREE economy shipping for most products when you spend $29 or more! Your order will be delivered 1-7 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 business 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 business 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 2 business using this level of service (UPS Ground). 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 1-7 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.
Ammonium Chloride Solution for Fishless Cycling 4oz - Dr. Tim`s Aquatics
No need to do the "Damsel" method in cycling your tank, because we find out just how hard it is to get them out of the tank once our aquascape is where we want it, and our tank is done cycling. No need to add dead matter, like frozen shrimp or fish food, making the water smell foul. This Ammonium Chloride Solution bottle is a reagent grade ammonium chloride made for the sole purpose of fishless cycling.
Generally, during a fishless cycle, one needs to add ammonium chloride to their tank 3 or 4 times so this bottle is enough ammonia to cycle aquariums up to 200 gallons.
Specifications:
Bottle size = 4 ounces (118 ml)
Dose 4 drops (.2 ml) per gallon of aquarium water
Concentration is 50 mg/L of total ammonia-nitrogen (TAN)
Use with One and Only Nitrifying Bacteria
Conversion Table:
(1 Drop = 0.05 ml)
Milliliters
Number of Drops
Gallons Treated
1 Teaspoon
5 ml (approximately)
100 (approximately)
25 gallons
1 Tablespoon
15 ml (approximately)
300 (approximately)
75 gallons
NOTE: As of November 1, 2016 Dr. Tim`s changed the concentration of the ammonium chloride solution so it now takes 4 drops per gallon. The previous version called for 1 drop per gallon. Please see the label on your bottle to determine how much to use. If the bottle say use 1 drop use 1 drop if the bottle says use 4 drops use 4 drops.
Manufacturer Info
Dr. Tim`s Aquatics is the merging of the twin passions of the founder: fishkeeping and science. They make setting up and maintaining an aquarium easy by sharing practical advice and proven products developed through years of experience and their own real science.
Their products are developed with a simple goal – to make fishkeeping easy. You don`t need to be a biologist or chemist - they`ve got that covered! You don`t have to make mistakes – they`ve made hundreds so you can learn from them. Just have a little patience. There`s no magic or secrets – they`ve done the research and produced the products.
Dr. Tim has published numerous peer-reviewed scientific papers on nitrifying bacteria and filtration for aquariums and aquatic life-support systems. He also has written dozens of articles and columns for aquarium trade and hobby magazines. He has been an invited speaker to many national and international conferences and regularly speaks to aquarium societies.
Dr. Tim hold numerous patents for nitrifying bacteria, their use to accelerate nitrification in aquatic systems and their detection using molecular methods.
Ask a Question Earn 15 Points when you answer a question
CONS
Directions are vague. could cause harm to corals and inverts
REVIEW
Works as advertised with there plan. Plan should state you also need to monitor your nitrates. Mine were very high and needed several large water changes. There directions simply say when ammonia and nitrites are gone simply do a water change and add some fish. My nitrates were well over a hundred s...Read More
Works as advertised with there plan. Plan should state you also need to monitor your nitrates. Mine were very high and needed several large water changes. There directions simply say when ammonia and nitrites are gone simply do a water change and add some fish. My nitrates were well over a hundred so I don’t think I needed to add as much as they recommend.Hide
Much more humane than the old way of using Damsels or other “cheap” fish. Let’s have some respect for these beautiful marine creatures and use other methods like Dr. Tim’s! It’s also much cleaner than ghost feeding your tank. Just clean and pure ammonia... what else could we ask for? Thank...Read More
Much more humane than the old way of using Damsels or other “cheap” fish. Let’s have some respect for these beautiful marine creatures and use other methods like Dr. Tim’s! It’s also much cleaner than ghost feeding your tank. Just clean and pure ammonia... what else could we ask for? Thanks dr. Tim’s and MD for a great and inexpensive product!Hide
I used this to test my cycle power in a new tank. This is a much better alternative than putting Deli shrimp in the tank or torturing fish to get you through the cycle. Awesome product
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 1-7 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 1-7 business days. Just spend $29 or more!
free faster shipping for orders $250+
Over 90% of shoppers receive their orders within 2 business using UPS Ground. Upgrade from free economy shipping to UPS Ground 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.
Rack up reward points to earn discounts on future purchases! You can earn reward points by creating an account, writing reviews, referring friends, subscribing to our newsletter, buying products, and more!
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.
46,020 Reviews. 5,153,553 Products Shipped. #1 Aquarium Supply Store Online.
If you find a product we sell for a lower price at another online store, we will match their price to ensure you always pay the lowest amount when you shop with us.
Enter the price, shipping cost and website address where you found the lower price. Then click the "Add to Cart" button. We will review the lower price while processing your order and make any necessary reductions before your order ships. Some restrictions apply. See Terms & Conditions
