Click to Verify - This site chose VeriSign SSL for secure e-commerce and confidential communications.
Security Seal
Marine Depot Live Chat Support
Pet supplies, Pet products, and Pet Accessories for your dogs, cats, birds, fish, reptiles or small pets. Pet experts are available to help you.
New Customer? Register | Sign In
Expires in 00:00:00
In-Stock! EcoTech Radion XR15w PRO LED Light
0 items
Your cart is currently empty.
View Cart Checkout
Aquarium Supplies
Home » Saltwater Aquarium Supplies  » Test Kits  » pH  »  Elos Aqua Test Kit - pH Marine
Elos Aqua Test Kit - pH Marine

Elos Aqua Test Kit - pH Marine

In Stock: Buy now and your order will ship the next business day
Item #:
MSRP: $26.99
You Save: $12.00 (44%)
Marine Depot 60-day Returns
At Marine Depot, we stand behind our products. That is why we offer a 60-day return period: one of the best in the industry! Learn More

Elos Aqua Test Kit - pH Marine Information

Product Manuals & Documentation


The pH value or acid value indicates how acidic or alkaline the water is. It is a measure of the concentration of the acidic or alkaline components in a hydrous solution. Pure water will react neutral and has a pH-value of 7.0. If the acidic components are predominant, the pH value will drop below 7.0. If the basic components are predominant, the pH-value will rise above 7.0.

The saltwater aquarium pH-value is considered between 8.1 and 8.4 pH which is the value found in natural seawater. Many organisms in a saltwater aquarium are very sensitive swings in pH value or values away from the acceptable range so a regular check on the pH-level is necessary to note and to avoid any negative development.

ELOS AquaTest pHM, as well as all the other colorimetric test kit of this line, grant very high precision thanks to several procedures like the use of “RealColor” technology, an accurate system to calibrate the color chart compared to the reagents; the validation of each reagent with NIST (National Institute of Standard and Technology) certified samples and the careful stock management to supply to our customers ONLY the freshest production batch. ELOSAquaTest pH M shows a range of 8.1 to 9.0 pH-units.


  • Easyreading: “RealColor” technology.
  • Highprecision: thanks to the use of calibrated dropper
  • NISTvalidation: each batch of elos reagents is validated using NIST(National Instituteof Standard and Technology) samples
  • "Safereagents": reagents and testing procedures are based on Low Risk Reagents. None of our test kits are based on Toxic Reagents.

  • Manufacturer Info

    ELOS: the ultimate supplements and equipments for marine and planted aquariums.

    Elos is an aquaristik company that is exclusively dedicated towards the development, production, and marketing of specialised, high quality products for the aquarium market.

    We apply the latest advances in marine and fresh water sciences into our manufacturing and products. We are environmentally responsible as well as respectful of the key ethic rules on employment and production. Almost all our products are made in Italy, through few, well trained Internal Employee with the help of key external suppliers, Universities and Research Centres.

    Our commitment is to invest in the future, we take great care of details and innovations but beside this we also take care of our traditions. We apply modern process, but we also use traditional techniques, employing local craftsmen for the production.

    We take great care in designing our products, and packs to simplify their use making them pleasant to see and to touch. From the first contact with our products you will immediately perceive the care to produce them and the great attention toward each single detail.

    For all this we invite you, by heart, to try our products. Join your passion with us, use our products and make the best out of them and, we are sure, You will experience the delight of creating your personal, unique underwater world in a beauty you have never seen before.

    Elos Aqua Test Kit - pH Marine Reviews

    Average Rating
    (8 reviews)
    Sort Reviews By:

    Elos pH test kit

    Reviewers Rating Excellent!

    Posted: 1/9/2014 from ELIZABETH, CO UNITED STATES
    4.5 5
    Experience Level: Intermediate

    Comments: Easy to use. Colors are easy to differentiate.

    Did you find this review helpful? Yes No

    Good kit

    Reviewers Rating Excellent!

    Posted: 11/28/2013 from CALIFORNIA, MO UNITED STATES
    5.0 5
    Experience Level: Intermediate

    Comments: This kit produces the same colored results as other kits and is just as easy to use, BUT, the colored scale chart accuratly matches the test. No guess work on the color shade .The syringe is a nice addition to get the corect amount of water, just don't go by the mark on the test tube as jt is off. The syringe is faster and easier to fill the tube anyway. All together I recommend this product over the others and will purchace it again.

    Did you find this review helpful? Yes No

    Elos PH test kit

    Reviewers Rating Excellent!

    Posted: 1/16/2012 from GRASS VALLEY, CA UNITED STATES
    4.5 5
    Experience Level: Intermediate

    Comments: In salt for 8 years and just finally tried this kit as I really like all my other Elos kits. Easy to read and use and I highly recommend.

    Did you find this review helpful? Yes No

    Excellent Kit

    Reviewers Rating Excellent!

    Posted: 10/21/2010 from MURRIETA, CA UNITED STATES
    5.0 5
    Experience Level: Intermediate

    Comments: I bought this kit as a "2nd opinion" to my primary Salifert PH test kit. It's extremely easy to read and takes 30 seconds to test. In fact, THIS kit became my primary PH tester and the Salifert kit became the secondary kit. I highly recommend this!

    Did you find this review helpful? Yes No


    Reviewers Rating Excellent!

    Posted: 5/14/2010 from Las Vegas, NV UNITED STATES
    5.0 5
    Experience Level: Intermediate

    Comments: Just want to let the reef people know that this is the best test kit out there for the money.I have tried other PH brands in the past and thay are not so good.My exp with other low grade PH test kits is that they are hard to read the color charts.i would always have to go to one of my familey members for a second and therd opinon on what the colors are.this is a high grade test kit.i compared it with my PINPIONT PH PROBE its ded on! i would like to thank the people at this site for GREAT customer service and very fast home del. its ben fantastic dealing with your staff. you have a new costomer to add to your list.THANKS AGAIN JOHN....

    5 of 7 People found this review helpful, did you? Yes No

    A+ Kit

    Reviewers Rating Excellent!

    Posted: 2/18/2010 from THURMONT, MD UNITED STATES
    5.0 5
    Experience Level: Intermediate

    Comments: Great Acurate test kit, I have 3 other test kits that are junk compaired to this one, clear color compairison chart.Worth every penny.Other test kits color chart show everything above 8.0 to be blue/green.

    2 of 2 People found this review helpful, did you? Yes No

    great test kit

    Reviewers Rating Excellent!

    Posted: 11/26/2008 from CA
    5.0 5
    Experience Level: Intermediate

    Comments: Very good color scale. Clear difference between 7.7, 7.9, 8.1, 8.3, and 8.5 on the color chart. No doubts, unlike others I've tried. They also fixed the vial cap issue. Before, the caps were very difficult to put on the vials. Not anymore.

    2 of 2 People found this review helpful, did you? Yes No

    Great product

    Reviewers Rating Excellent!

    Posted: 5/27/2008 from Georgia, USA
    5.0 5
    Experience Level: Intermediate

    Comments: Works fast, only a single chemical. Add 5 drops, shake and compare. The color chart goes from 7.5 to 8.5 and determining the color gradients are very easy. Kinda spendy (I paid $17), but I'd buy it again.

    1 of 1 People found this review helpful, did you? Yes No

    Elos Aqua Test Kit - pH Marine Window Navigation Prev Next Zoom Close
    We value your opinion & experience
    Thank you for taking the time to review our products!

    This is a Product Review for: Elos Aqua Test Kit - pH Marine

    First tell us about yourself.

    Name to display on the review: Location (ex: Anaheim, CA):
    Your experience level:

    How would you rate this product?

    Review Title:

    Write your review:
    (Please focus on product quality and performance, maximum 2000 characters)

    This item is temporarily unavailable but will be back in stock soon.

    Item #
    Click the Add To Cart button below if you'd like to reserve this item today. Any other items included in your order will be immediately processed and shipped. We will ship this item separately as soon as it arrives. We will not charge you for this item until it ships and you will incur no additional shipping charges.

    Enter your email address in the field below and click the Notify Me button if you'd like us to send you an email when this item becomes available. Although you will be immediately notified when we have stock on hand, we will not reserve any units for you; you must return to our website and place an order.

    Your Email:
    Just enter your email address below and we'll let you know when the product you are looking for becomes available!

    Item Code:
    Your Email:
    If you find a product we sell for a lower price at another online store, we will match their price—today and up to 14 days after you’ve purchased the item!

    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.

    Sorry! While there is no limit to the number of items we'll price match in an order, our online system will only accept one. Please call us at 1-800-566-FISH (3474) and we’ll happily price match additional items for you.

    Price *
    Shipping Cost *
    Competitor's Website *

    Sharing products with friends and family couldn’t be easier!

    Just complete the fields below to send your friend or family member a personalized email message featuring the product of your choice.

    Your Name *

    Friend's Name *

    Friend's Email *

    Personal Message

    Add to Wish List
    Select Wish List:
    Comments (up to 200 characters):
    Quantity Desired:
    Quantity Received:
    Email Specials
    Subscribe to our newsletter feed.
    Newsletter Tips & Tricks! New Products!
    Discounts & Promos!
    July 21, 2014
    "Excellent service and quick delivery. Will continue to do business with Marine Depot."

    July 19, 2014
    "I appreciate Marine Depot's price matching. Keeps me coming back to them with my business."

    July 17, 2014
    "Support quickly answered questions I had and the product was quickly shipped. I would definitely order from them again."