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Posted: Mon Mar 06, 2006 10:00 pm
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Posted: Wed Mar 08, 2006 7:44 pm
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Posted: Wed Mar 08, 2006 7:50 pm
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Posted: Wed Mar 22, 2006 1:11 pm
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Posted: Thu Apr 13, 2006 1:20 pm
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Okay, you're not a bad person, just new to keeping fish and making a lot of mistakes the same as anyone else will. I'm going to tell you the places where you're going wrong, so that you can fix them before you do anything else and then things should get better for you.
Firstly you have it right that the violet, otherwise known as dragon, gobies need salt. They need about 7.5 teaspoons for every 10g of water.
They are also aggressive and sometimes predatory and require a long tank of at least 120cm in length, because they can attain 60cm in length when full grown.
They are also very sensitive to poor water quality and will stop feeding and starve themselves if stressed.
From the symptoms, I would suggest that the violet goby had an internal bacterial infection and quite a nasty one at that. This would indicate very bad quality water. You should purchase the following test kits if you haven't already and check your water!
Ammonia Nitrite Nitrate
I suspect that you will have high (anything above zero) ammonia and nitrites and to get these down you will need to do an immediate large water change, then test on a daily basis and keep changing the water until the ammonia and nitrite reach zero.
Secondly, you are most definitely over crowded. You probably have comet goldfish and they can reach a foot in length each. You need 20g for the first fish and an extra 10g for each additional fish - therefore you are way overstocked.
Next, the goldies are cold water fish and the others are tropical, so you need a heater.
And then theres the catfish, most are scaleless and cannot tolerate salt in their water - it burns them.
Last but not least - have you ever heard of cycling a tank? If not, please check out these two articles that I wrote and you'll get a detailed lesson quite quickly!
The Nitrogen Cycle Cycling a Fresh or Brackish Water Aquarium
Good luck!
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