Marine Depot offers FREE economy shipping for most products when you spend $39 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 Faster Shipping which speeds delivery to 1-5 days. 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, oversize/overweight and items shipped directly from the manufacturer do not qualify for this special offer.
$5.99 Flat Rate Shipping For Orders Under $39
Most orders under $39 ship for only $5.99 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 $5.99 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 $5.99 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.
MarineDepot.com Education Center - Reef Aquarium Chemistry Calculator
1. Choose your calculator
2. Enter your water volume
Total System Water Volume:
3. Calculate your levels
Current Calcium Level: ppm
Desired Calcium Level: ppm
Select product:
3. Calculate your levels
Current Alkalinity Level:
Desired Alkalinity Level:
Select product:
3. Calculate your levels
Current Magnesium Level:ppm
Desired Magnesium Level:ppm
Select product:
RESULTS:
YOU NEED:
Keeping your
reef tank
parameters
in check is essential to the health and vitality of your aquarium.
Doing so can be accomplished a number of different ways. Most commonly reef aquarium
owners use a combination of water changes,
filtration
and supplementation to get and keep their water conditions
at stable levels that replicate the conditions in a natural ocean reef.
The frequency in which reef aquarium hobbyists change their water varies, although
weekly, bi-weekly or monthly are most common. The more challenging aspects of maintaining
pristine water conditions in a reef tank have more to do with filtration and supplementation.
Specifically, how often should one replace their
filter media
and how much and how often should one dose
aquarium supplements
?
Our Reef Aquarium Chemistry Calculator helps
eliminate the guesswork associated with media changes and dosing. Here is how it
works:
Select a water parameter (Calcium, Alkalinity or Magnesium) or filter media (carbon
or
GFO
) from the drop-down menu.
Enter some basic information about your reef tank.
Click the Calculate button and our reef calculator will tell you how much supplement
to dose or media to change as well as provide instructions on how to carry out the
task.
If you have questions, contact us! We are
happy to help you use our
aquarium
calculators
as well and offer a plan of action to help rid your reef of
dirty water or nuisance algae and create ideal living conditions for fish, corals and inverts.
46,020 Reviews. 5,153,553 Products Shipped. #1 Aquarium Supply Store Online.