Totally flipin usual. There happy to get your money and that's about it.
Right so I take it you know a tank should cycle before it's ready for your fishes to live in.
First option. Take the fish back and tell then to hold them until your tanks ready. Make a total fuss, and tell them you'll tell everybody on the net if they don't.
Or cos that won't work we can deal with the prob. Feed the minimum, to reduce waste. Lower the tempature slightly and increase the water displacement in the tank, i.e. point the filter upward slightly to move the water on the surface. If new tank syndrome hits the tank it can cause your fish to sufficate, these two ideas will help defend your fish against this.
Next Before we start telling you what to do next I'll need a bit more info to help see what stage your at.
1. Setup details. Tank size, filtration method. Have you done any cleaning.
2. How long has the tank been running.
3. What fish do you have and there size.
4. Have you carried out any tests on the tank water, if so what were the readings. If not I suggest you do some. Ammonia, NitrIte, NitrAte, Ph.
That will do for now.
