Bacteria in the water is not very efficient. Bacteria
attached with water flowing across it is much more
efficient. For nitrification, the more surface area you
have for bacteria to grow and the more water flow you have
the better your biological filtration. You can actually
reduce ammonia levels simply by increasing water flow.
However, with live rock, increased water flow can also
increase ammonia levels. This is because if you have a
substantial amount of die off it gets more oxygenated
water and thus is less anaerobic. But even so it is better
to have more water flow to save the inhabitants, One can
also aerate the water to help drive off ammonia. It will
create salt creep, but since it's just temporary for
cycling purposes, it's not so bad. And by all means do
water changes to keep levels from getting too high.

Wayne Sallee
Wayne's Pets



TheRock wrote on 1/14/2007 10:13 AM:
Isn't high ammonia part of the cycle ?
Don't you need it to cycle ? If you dilute the tank with water aren't you
just
removing bacteria that moves the cycle along and prolonging cycle time ?

I only ask because I didn't do it that way and I had plenty of pods and
worms
after the cycle.


"Wayne Sallee" wrote in message
link.net...
I would do water changes if it is real high in ammonia or nitrite, in order
to preserve the life on the rock.

Wayne Sallee
Wayne's Pets



TheRock wrote on 1/13/2007 7:17 AM:
Your tank is cycling...if you're seriously going to get into this hobby
one thing you need to learn up front is patience. Nothing happens
overnight.

You rock takes months to cure. You should not have changed your water at
all yet.
Do you have a protein skimmer ? While you're curing rock you should be
running a
protein skimmer 24/7 7 days a week. Smells good I bet : )


wrote in message
ups.com...
I just bought a 25gallon aquarium about a week ago and put the substate
and live rock in it. I haven't put coral and fish in and today I
suddenly found the water turned yellow!

I have pumps (Rio 800) running and using Biological filter calls.. What
do you guys think the problem come from? I changed water (about 60%
change) today but still feel water is yellow. What do you think? Shall
I do a complete water change?

Thanks!