Water change

[swerveious]

My 120 is cycled and I need to do as big of a water change as possible. I have enough rodi to do it all but it's like 60 degree water. Do I have to worry about killing my bacteria being that cold? I have an extra heater going in a 40 gallon drum but that's gonna take forever. The reason I say as much as possible is because I started with tap water that was treated. My dkh is like 15. Just worried about killing bacteria now that I'm finally cycled lol

 

[BubblesandSqueak]

I started with tap water, I know, I know lol. But I used tap water and couple years ago when I had it running and

I have a 150 gallons of rodi ready to go, I was concerned I might kill of bacteria cause the water is so cold.

it depends on what's in your tap water. chlorine, chloramines, etc...also if your tap is well or city. different areas put things in the water even without telling you. Not sure @Gumbies R Us know but their lake occasionally has algal blooms and they put eucalyptus in the water to mask it. I only found out when I noticed there was an oily residue on me after showering and a neighbor told me all about it.

 

[swerveious]

60 degrees shouldn't kill the bacteria. I store my live rock in the basement at 59 and have no trouble insta cycling tank with it.

Awesome thank you.

 

[swerveious]

What salt are you using?
Salinity?

RODI is king IMO, our water is the life blood of our reefs.

Instan ocean salt, .26 salinty. I used tap water to get it going. Should have waited till I got the roof machine but

 

[BryanM]

Instan ocean salt, .26 salinty. I used tap water to get it going. Should have waited till I got the roof machine but

I'd get the RODI and make the water with it for this large water change.

 

[swerveious]

I'd get the RODI and make the water with it for this large water change.

I have plenty of rodi made now, my concern was the temp

 

[vetteguy53081]

Everything I've read says 15 is way too high for fish, dkh won't come down on its own right? Has to be consumed or water changed?

15 high for coral, not so much fish. Wai a few weeks for coral and I too suspect false reading. Can you get a local club member or friend to test DKH for you with hanna or salifert kit?

 

[swerveious]

15 high for coral, not so much fish. Wai a few weeks for coral and I too suspect false reading. Can you get a local club member or friend to test DKH for you with hanna or salifert kit?

I don't, my local store doesn't use liquid or test strips. They have a good size machine that does it and prints a copy of specs out. I would assume it's correct but ill maybe try a couple different ones. I knowsome lfs are not the best, especially places like petco lol

 

[vetteguy53081]

I don't, my local store doesn't use liquid or test strips. They have a good size machine that does it and prints a copy of specs out. I would assume it's correct but ill maybe try a couple different ones. I knowsome lfs are not the best, especially places like petco lol

That is the spintest and less than reliable

 

[exnisstech]

Your own test kits will be a good investment and make testing more convenient for you which means you'll test. Not really important yet. Keeping coral Salinity, alkalinity, nitrate and phosphate are my weekly tests with calcium being tested monthly

 

[JayM]

That is the spintest and less than reliable

I spend too much $$$ at my LFS so they test my water for free with that machine. I've come to the conclusion that it's probably ok if you're looking for consistent results, not so much for accurate results.

 

[swerveious]

That is the spintest and less than reliable

Oh gotcha

 

[swerveious]

I spend too much $$$ at my LFS so they test my water for free with that machine. I've come to the conclusion that it's probably ok if you're looking for consistent results, not so much for accurate results.

Ok, yeah I'm gonna see if I can get a different test kit for it.