Quote:
Originally Posted by Aquattro
Ya, I hear this all the time, but it's not true. Water contains so little bacteria that you wouldn't notice old from new in any kind of new tank, QT or otherwise.
If you did this thing above, and then transferred rock over, then that is where your bacteria came from. I transferred my 90 into my 180 with all new water, no spike or anything else either  The bacteria is on/in the rock. |
+1
By using water from my DT, just figured I would kill two birds with one stone so-to-speak (I like birds LOL) ...my DT then benefits by getting a bit of freshly mixed water.
I keep my DT clean and my levels are all good in regards to nitrates/phosphates etc.
The fresh water gives a tiny boost to the calcium and alkalinity and magnesium... and with all my sps every tiny bit helps LOL
The QT tank does not need this as of course there are no corals in there. That's why I take the water from my DT.
The water does not hold the bacteria.
Come to think of it, initially I changed close to 50% maybe every other day... then gradually eased to 25% twice a week... then weekly.
But remember, I did put a small piece of liverock over from my sump, which does harbour bacteria.
Maybe someone can give you a piece.
Just don't put anything back into the DT from the QT (except the fish
)