Originally Posted by InfernoST
Thanks for the info Kurt. Do you think 2 gallons every 12 hours is to much in a 20 gallon volume, should it be 1 gallon every 12 hours? When you say bring up 1 point a day you mean from say 1.009 to 1.010 (day 2) to 1.011 (day 3) and so on?...
I went back and reread my favorite hypo article...
ATJ's Marine Aquarium Site - Reference - Hyposalinity Treatment
... and it looks like you're following it regarding the lowering of salinity. (Replace 20% of tank water with fresh water every 12 hours.) I think when I did hypo, I did the 20% every 24 hours. Either way, you should be fine.
Other articles I've read suggest the slooooooow raising of salinity - the article I linked to doesn't really spell it out very well. But yeah... that's what I meant about a point a day... 1.009 to 1.010, etc.
One thing to watch for that took me by surprise was testing for pH at lower levels to make sure they stay stable. (With less buffer naturally in the water, your pH may drop more than normal.) Using my SW
pH test kit, the colors were waaaay different than I was used to. But then when I looked at the Freshwater color card that came with it, the colors looked closer to those. It made sense when I thought about it... at 1.009, I'm closer to FW
. So you have to do a little "creative interpretation" looking at both the FW
color cards to figure out where you really are. Kind of. Let's just say this is one instance when a pH meter would come in handy! Not a real big problem... just one that caught me by surprise. A little buffer now and then kept things fine for me. But you might not have a problem with a bigger quarantine tank. (Mine is 10g.)