Hello! So I tested my water and my alk is 7.5! Today is water change day and I use reef Crystals by Red Sea the new salt water is 12 alk would a 2.5-5 gallon water change be okay to do? The corals are usually in 9 alk would this kill my corals? I feel like it would almost be like acclimating them to a new tank because I’ve bought corals that are from a tank with 11 alk and I run mine at 9 and they’re doing fine
Water param at 7.5 alk want to raise back to usual 9 about to water change
- Thread starter zachtyd
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supposed you have a 30 gallon water volume I would do 3 gallon(10%) WC first and test the water the next day to see where the alk stand. Or if it would be safer if you do 2 gallon WC test the water and you can always do another small WC if desired alk is not meet that way won’t cause a big swing.
Fiesty
Active Member
The most important thing to figure out first is where r u trying to keep your tank at in terms of Alkalinity and Calcium??? If u r trying to keep it low than use standard IO. If u want to raise it and keep it elevated then go ahead use the reef crystals and use kalkwaser or 2 part to maintain levels inbetween water changes, or frequent water changes depending on your systems needs. Otherwise u will just be fighting yourself and the ups and downs wont be so good for the tank.
Fiesty
Active Member
Sorry, i just reread your post and realized that you CLEARLY stated your tank is usually at 9. Lol. Id still try n match where u keep the tank normaly to the level of the salt u use and the maintain inbetween water changes. Whatever that level may be. Hard fir menti explain but hopefully it makes a little sense?
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