Need help keeping new fish alive.

[3MTA3]

Originally Posted by Myka

Your tank is not big enough to have more than one Tang, especially not a Sailfin Tang. Sailfins grow very big very fast, and need a lot of swimming space. They need a 200g tank.

Have the new fish been eating? Are they getting picked on? Do they just hide? 3-4 weeks sounds more like it is a problem with the fish like internal parasites or collection with cyanide or something like that. How many fish have you lost like this? What other types of fish?

This is the wrong way to answer a posted question....and not offering anything that can be checked but are offering critisism.

Originally Posted by GreenSpottedPuffer

Can we get a bit more info on the system?

How much LR? Skimmer? Water parameters?

Is there or has been ich in the tank?

As much of the history of the tank that you can honestly think of. Something may come up...otherwise it could be a million different things.

It can be so hard to figure these kinds of sudden deaths out without more info.

This is the correct way to answer a question of need!!! kudos to you GSP.

Maybe with some of these answers the kind people of this forum might be able to help you out. Should I be able to offer any HELPFUL information as this thread grows I will be sure to add in