help I am killing all new fish and dont know why

The friendliest place on the web for anyone with an interest in aquariums or fish keeping!
If you have answers, please help by responding to the unanswered posts.

rena

Aquarium Advice Newbie
Joined
Apr 27, 2004
Messages
5
Location
Florida USA
I have lost several fish for apparently no reason.
This is what I have done......please tell me what is next.
I bought a 100 gal saltwater tank about two and a half months ago.
I set up a 30 gal and kept it running and everything alive for about two months before that.
I have always added any new fish into the 100 gal after a week of quarantine in the 30gal.
I test my water weekly for nitrate, nitrite, salinity, and ph. I went through a week of a nitrite spike and then the levels settled to good and I have had no problems with these since the second week my tank was set up.
When I set up my tank, I used live sand, and live rock to "jump start" it and also used some water from my 30 gal tank. I was told that after the nitrite spike I could add fish to the tank, which I did.
I added my 3 damsels and two clown fish, arrow crab, the live rock, and the sleeper gobi and cleaner shrimp from the 30 gal, to the 100 gal.
Then, after about two weeks, I added my first "expensive" fish, a racoon butterfly. I quarantined the butterfly for a week in the 30 gal and he appeared happy and healthy and was eating well. Then, I put him in the 100 and two days later he died. Then, a week later, i decided to buy a Yellow Tang. I went through the same process with him and he died the day after I added him to the 100 gal. This was approx 4 days ago. Yesterday, my sleeper gobi, who I have had for more than 3 months died also. In between all of this I also added two starfish. One of the starfish had some missing pieces when I bought him and I did not expect him to live long. He did live a few days but I think the gobi may have helped him loose more parts. When my Tang died he lost all of his yellow color and was almost white. The same thing happened to one of my clown fishes. I had also put some granite rock in my tank as a "builder" but removed it recently because I believe it may have something to do with the death of my fish.( I read that some things that are not of marine origin can have metals or other organisms that dont "wash away". It seems that every new fish I add, dies within days. However, I have two fish that have lived since the beginning. All of my bottom feeder type of non fish (shrimp, crabs, starfish, ect) have lived since the beginning too. Anyway, if you have any suggestions, please let me know. Thanks bunches for reading all of this. :cry:
 
Hello

You might want to read my two previous posts about "Sick fish, 2 dead in 2 days". It sounds like the same problem I had. I would do a water change.
 
Also a qt period of 1 week isn't long enough. I have had several fish that became sick after a week or 2 in qt. 3 or 4 weeks would be better. Was there any marks, spots, etc on the dying fish?
 
I have done a water change after each fish died. There were no spots on the fish ( I looked very hard) but the fish did tend to lose color and become almost white within a day. The good news is I havent lost anymore fish today.......keeping fingers crossed. :!: :?
 
Glad to hear everone else is alright. Keep an eye out and be ready to take action.
Good luck!!
 
Back
Top Bottom