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Before you up and get another one, you should probably try and diagnose the root of the problem. How are your water parameters? Are you cycled, and if so for how long? What's the temperature?
..... Or the fish that died was traumatized from shipping before you brought it home and simply did not recover. I always ask the sales people how long they have been in the store. The longer the better. Do you have your "dither" fish? Rams need the schooling fish to feel more secure and it helps build their food drive.
Ok, I'll say it.... Define "fine". I agree with waiting to add until you have an idea of what killed the last. Plus, I'd wait and not get one immediately after a new shipment. LFS rams are notoriously weak.
Rams do not need dithers to inspire a food drive. Dithers are cool and help them relax, but are by no means necessary.