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Shirlie Sharpe

New Fish Die

By November 28, 2006

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It's the most common complaint of brand new fish owners. Do you know why their fish die? Visit the forum and share what you know.

"I have a 10 gallon tank, water tests ok, I have four fish that have lived in it for 4 months and are growing. When I introduce new fish they die within several hours. I have one Angel fish & three Gourmi. Any suggestions????"

Comments

November 28, 2006 at 2:57 pm
(1) John says:

You probably haven’t done any partial water changes for the four months you have had the tank up and running. The ammonia, nitrite and nitrate levels are probably through the roof. Your fish have slowly adapted to the terrible water conditions over the months but the new fish go into shock almost immediately and die. The pH has probably dropped due to the high levels of toxins and a 1.0 drop in pH alone is enough to kill a fish that has been living in higher pH all his life.

Regular (weekly) partial (25-30%) water changes are the single most important thing you can do to keep your fish healthy and happy.

If you water is as bad as I think, you must not do a large water change at this time. Only change 5-10% a day for about 5 days. Then change 15-20% every other day for 10 days. At the end of this time, you should be able to start doing 25-30% changes once a week and start adding some new fish.

An ammonia test kit is a good thing to have as is a pH test kit. All good fish stores have them for sale.

Good luck!

November 29, 2006 at 2:57 pm
(2) JP says:

Does your Angel still have fins ?
What type of Gouramis’ ?
What kind of new fish are you introducing?
Many places (including Tetra website, tetra-fish.com) claim Blue Gouramis are peaceful, mine chased & killed everything.
Also, they may need places to hide.
I agree that it may be your water but you do have fish living in it now.
Check your water, but also watch to see if the fish are being chased to exhaustion.
Hope this helps & good luck, JP

November 29, 2006 at 8:33 pm
(3) Aleen says:

I would suggest that you do some water changes, and test your water. what kind of filter do you use? you might need to change the filter cartridge. the new fish might be dying of shock, maybe not turning the lights on for a few hours, and also make sure the new fish get adjusted to the water before you put them in. hope you have better luck with your fish!

December 1, 2006 at 7:53 pm
(4) Susan says:

Seeing as how its a 10 gallon tank…the fish you have now will reach the fish “quota” that is healthy for that size tank before too long. I had Angels and Gouramis before and both kinds can possibly be a little aggressive; more so the Angel. You may be shopping for another tank before too long if you want to grow your fish family. Take care,
Susan

December 8, 2006 at 9:28 am
(5) caleb says:

wow.
thats freeky

December 10, 2006 at 12:36 am
(6) Megan says:

Are you putting the new fish straight into the tank, or are you floating the bag in the tank to allow for a temperature equilibrium? When you bring the fish home, open the bag so air can circulate, and add a small amount of the aquarium water into the bag, and more about ten minutes later. This allows the fish to adapt.

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