New Tank....wobbly Danios!

[dreamweaver68]

Hello,
I've recently set up a new tropical tank and need a lil advice if poss. We already have a 2ft tank which has 3 serpae tets,a black widow tet,a plec (which we've had for only 3 weeks and is titchy) and a chocolate catfish. Our new tank was set up using 2.5 gallons of water from our established 2 ft tank and one of the filter sponges from the fluval filter in the 2 ft tank (the filters are the same size).
The new tank has been running for 5 days and the fish were put in yesterday afternoon... 5 zebra danios which we bought yesterday and the tets from the 2 ft tank. At the aquarium centre where we got the danios,we were told they should be fine to go in as so much of the water and filter medium was from an established tank.
Got up this morning and the danios are looking a tad wobbly but the tets look fine (at the moment!) Just done a water test :
Ph is 6
ammonia is 0-0.6
nitrite is 0.1
nitrate is 30-40
As i read it these are pretty much ok...but are they? And please can anybody advise me on my next move?
Any advice would be greatly appreciated,thanks!

 

[Miss Wiggle]

ammonia and nitrite should be 0 always.

however with media from an established filter and hardy fish like danio's i expect you'll be fine. think it's a litle minincycle while the filter media catches up with the bio load in the tank. keep checking your levels every day, whenever you get a reading that's not 0 do a 20% water change, at a guess you'll need to do daily changes for a week or so then everything will stabilise and be fine.

 

[dreamweaver68]

ammonia and nitrite should be 0 always.

however with media from an established filter and hardy fish like danio's i expect you'll be fine. think it's a litle minincycle while the filter media catches up with the bio load in the tank. keep checking your levels every day, whenever you get a reading that's not 0 do a 20% water change, at a guess you'll need to do daily changes for a week or so then everything will stabilise and be fine.

That was quick....lol
Thanks for that! I'll keep testing and hopefully everything will settle.