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  1. Marine Depot
    Hanna Makes Testing Fun, Fast, & Easy! Tired of matching colors to a color chart? Get an accurate digital reading with Hanna's water testing tools!
  2. Tank Specs
    I have a 40 gallon mixed reef, a few softies, zoa, star polyp. SG 1.03 two days ago, 1.026 now calcium 370 yesterday, 435 today alk 8 ph 8.3 magnesium is fine, everything is on a doser, have skimmer. I was using a hydrometer and like many people, and found out my tank was way off when I got a...
  3. Marine Depot
    40% off our best-selling Refractometer Black Friday Every Day! TODAY: 40% off MD Refractometer! Aquarium Salinity: How to Measure and Why It's Important
  4. Marine Depot
    VIDEO: Measuring Salinity and Why It's Important Learn the importance of maintaining salinity within acceptable ranges for livestock, tips on how to keep it steady and tools to measure the salinity in your tank.
  5. General Reef Discussion
    So I have a year old refractometer (ATC) that I haven't really used. I have a 35ppm solution for calibration as well. Last night I was testing my water to see if it finally rose in SG but when I tested it it came out 30 PPM. I haven't done any top off in the last 48 hours. I believe that it...
  6. General Reef Discussion
    So after seeing some sluggish corals I ran down to my local LFS. He tested everything under the sun for me and all came back ok. On a hunch he brought out his refractomer and found the SG was around 1.020 to 1.021 which was a surprise because going by my hydrometer the sg showed around 1.026...
  7. Must Reads and Common Problems
    A collection of threads that deal with salinity or Specific Gravity (S.G.). Salinity question
  8. General Reef Discussion
    I wanted to share what I just found out with my new refractometer. I just got the refractometer tonight as an early Christmas present. I tested the calibration with distilled water. It read 1.000 right on the dot. Just got home and thought I would test my aquarium water. I was blown away...
  9. General Reef Discussion
    So my little terror - I mean, lovely toddler - managed to get ahold of my Marine Depot refractometer last week while I was doing a water change... I know, I know, 3 year olds and cool looking telescopic gadgets don't mix well. I learned my lesson. Now I need to mix SW for my upcoming WC. I...
  10. Marine Depot
    109 items to be exact! Click here to see everything on sale today or check out our November 2014 coupon codes PS: We'll also include a copy of our new catalog with your order!
  11. Marine Depot
    How to Measure Your Salinity Sale ends 5/26/14 MORE MARINE DEPOT NEWS Chemi-Pure Blue Review: Blue is the New Black! How to Measure Salinity in a Saltwater Aquarium LED and T5 Hybrid: My Ultimate Lighting System My First Saltwater Aquarium (at home): Part 2 Kalkwasser: 10 Frequently Asked...
  12. General Reef Discussion
    Hi guys, I just invested in a new refractometer and my salinity measured at 1.029. It may explain the death of my peppermint shrimp but how much ill effect will this have on my corals? Should I just bring it down slowly and hope for the best? What can I expect? I have Zoas, Australian...
  13. General Reef Discussion
    When I originally set up my tank, I took a water sample to my LFS to check out how the parameters were doing. I was told my salinity was a little low, so I've been topping off my tank with saltwater. HOWEVER, apparently the device I'm using isn't working correctly. It's been reading around...
  14. General Reef Discussion
    With my Milwaukee MA887, and I though my refractometer was easy. 1 drop, 1 button, life is good
  15. General Reef Discussion
    Hey yall. Pretty much sense day 1 I've been battling a less than ideal salinity. It's right around 1.028. Are there any safe ways to lower this without additional additives? Is a SG of 1.028 even something to be worried about?
  16. General Reef Discussion
    Hi everybody, I have my quarantine tank up and want to perform a hyposalinity treatment. I've been reading up on hyposalinity and the importance I keep my water at a particular salinity. I've been using RODI to calibrate my refractometer but I bought some calibration fluid to be sure my...
  17. Marine Depot
    What is the difference between our standard and pro refractometers? Joe breaks it down in his latest blog post, Refractometers: Standard vs. Pro MORE MARINE DEPOT NEWS Join our Product Test Team! Flipp Your Way to a Cleaner Tank! JaxReef's 2013 Holiday Reef Conference AquaMaxx...
  18. General Reef Discussion
    I'm looking to buy a "TRUE" Natural salinity refractometer. Is this a good one? "Specifications: Range: 0-40 Parts per Thousand of Salinity in NSW - 1.015 to 1.030 Specific Gravity Minimum Division: 1.00 PPT - 0.001 SG "
  19. General classifieds
    I have a few items I am looking sell or trade. I have a MRC CR2, dual chamber calcium reactor, it looks like at least 500 gallon, but can't be sure. The guy had a 180 tank and a 300 and I think he used it on both. Next..American Marine Pinpoint pH controller, looks to be like new also have...
  20. General Reef Discussion
    Hey guys.. Just wanted to throw this out there. I know its been discussed here before but I wanted to add my story to the pile. I have had a reef for about a year now in my home. I'm loving every minute of it but I have learned some HARD lessons. One in particular I'm gonna share right now...
1-20 of 63 Results