transferring to new tank

[Jeff1967]

I've had a 29 gallon w/10 gallon sump for a couple of years. I am now in the process of transferring stock to a larger tank-75 gallon w/55 gallon sump. All has gone very well with smaller tank. I transferred approx. 15 lbs of my existing live rock and seeded the new sand with 4 cups of my old sand. I started approx. 3 to 4 weeks ago and have a GSP and Pulsing xenia that have been in the new tank for 2 weeks and are doing well, but I have place 3 green chromis in the tank and lost them all. I could never find them, but I'm showing no ammonia, nitrates or phosphates. Was it faulty fish? I would like to start transferring fish from smaller to larger tank.

 

[mcgyvr]

No one will know what happened to your Chromis.. Sometimes fit shappens...
You can transfer everything from one tank to another all in the same day so you can start transferring the other fish whenever you want..
As you moved the rock over you pulled all the bacteria along with it and thus will not have another ammonia cycle..

 

[Ron Reefman]

I can't tell you why you can find the Chromis, there just isn't enough information.

How long ago did you move the fish? Did you watch them at all after you moved them? Did they swim around and look 'normal' or did the disappear into the rocks? Did you ever find the bodied of the Chromis in the new tank? If not, did the new tank have an ammonia spike which should have happened if the Chronis died, even though you did have some live rock in the tank.

BTW, you really didn't need to 'seed' with sand from the old tank, in fact, I would not have suggested you move the sand unless you cleaned it. As mcgyvr stated, you moved the needed bacteria when you moved the rock.

 

[Jeff1967]

I bought three to try the new tank out. One out of the three went to the bottom and stayed for a couple of days and then disappeared. The other two swam well for 2-3 days, went to an upper corner for a couple of days, ended up at the bottom and them disappeared. I moved the rocks, but no fish.
Honestly, I'm not worried about the fish, just wondering if they might be tender fish, never had any chromis, but they were inexpensive and, i thought a good test fish for the tank. I am just wondering if i should try my clowns in there out of my old tank. Parameters are stable.
I was expecting an ammonia spike, but have not gotten one.
I have been doing a 5% water change on a weekly basis. I have always done a 10% weekly change, but since there are no fish, except the ones afore mentioned, i thought that a 5% change was sufficient. I will go back to a 10% when tank is stocked.

 

[Jeff1967]

Bye the way, thank you both for responding.

 

[Rover88]

I bought three to try the new tank out. One out of the three went to the bottom and stayed for a couple of days and then disappeared. The other two swam well for 2-3 days, went to an upper corner for a couple of days, ended up at the bottom and them disappeared. I moved the rocks, but no fish.
Honestly, I'm not worried about the fish, just wondering if they might be tender fish, never had any chromis, but they were inexpensive and, i thought a good test fish for the tank. I am just wondering if i should try my clowns in there out of my old tank. Parameters are stable.
I was expecting an ammonia spike, but have not gotten one.
I have been doing a 5% water change on a weekly basis. I have always done a 10% weekly change, but since there are no fish, except the ones afore mentioned, i thought that a 5% change was sufficient. I will go back to a 10% when tank is stocked.

Did you by chance check your overflow? I had a small goby manage to get into my overflow on the 75gallon, even though it had 'bars'.

 

[Uncle99]

One thing for sure about chromis, unless you have a very large tank, 6 will become 1, 5 will become 1, 3 will become 1.......and so on, in in actuality, we just don't know the fate of the 1.