Originally Posted by LOUIE ACES
all of my other fish appear fine, no odd behaviors. the green terror was about 2", the oscar is about 2", bichir is closer to 3-4", pleco is about 9", and upside down cat is about 1". all water perameters are fine, actually did a water change the day after i bought the green terror. and yes i took about a half hour to acclimate him to the tank when i got him. as far as the bigger tank is concerned, i'm actually going to look at a 75 gallon tank tomorrow...however i won't need it if my fish are dying :(
Larger tank will allow more room for fish to grow and provide way more dilution capabilities of waste produced by fish, which will help to maintain water quality between water changes.
Drip acclimation can take an hour or more, and depending on the difference between water that fish came from and water in your tank or mine,, would be the way to go in my view.
As mentioned ,the fish may have been stressed or sick when purchased. Is not all that uncommon considering the stress the fish endure during shipping to the fish store, and then they are placed in tanks that may or may not recieve water changes ,waters are often high in nitrates or nitrites due to overcrowding,and fish are usually fed cheapest foods available.
Then the fish are purchased and once again, they must adapt to possibly quite different conditions that may be present in your tank or mine.
Always wise to ask fish store what the water parameters are in their tank and compare those numbers with your own. You might possibly ask them to hold the fish for you for a week at least before you purchase the fish. If you are regular customer,they should be willing to do so . Some others may hold the fish if you provide a holding fee or down payment so to speak. Seldom pays to purchase fish that have just arrived at the store, better to allow the fishes to adapt to the enviornment and any that fall sick in fish store tanks are the responsibility of the fish store.
Quarantine tank at home can also be quite useful in preventing disease from being introduced to your tank and it passes my understanding why more folks don't use them for newly purchased fish.