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Seachem MultiTest Marine pH & Alkalinity Test Kit, 75 Tests  


Marine pH should be 8.2—8.4. Tanks dosed with limewater may go as high as 8.6. Natural sea water has a total alkalinity of 2—3 meq/L, but aquarium water should have a total alkalinity of 4—6 meq/L.

 

Note:

On October 1, 2021, The US Postal Service has just announced new guidelines for standard delivery times effective immediately.

  • Within 2 days for mail traveling 140 or fewer miles
  • Within 3 days for mail traveling between 140 and 930 miles
  • Within 4 days for mail traveling between 930 and 1,907 miles
  • And within 5-7 days for mail traveling longer distances