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Worried about Edna the Oscar


turtlechick
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I have a pair of oscars and have had them in the tank for about a month now. Earl (the male) is eating fine, and is pretty feisty. On the other hand, Edna is not doing so well. She was always a lot lighter in colour than Earl, with less orange. I purchased her full grown with HITH. It seems to have stopped progressing thanks to a little medication. She ate last night before I went home from work and looked fine. Today I tried to feed them a few pellets at around noon and she didn't seem at all interested. She is still swimming around fine, but by the end of today her colour lightened up ALOT and I tried to feed her again this evening and she wouldn't even look at it. Can someone please help? The water parameters are perfect.

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She is getting NLS pellets and has no war wounds. The two are a pair. The tank is 90 gallons. The pH is 7.3 and the ammonia reading is 0. The tank was cycled before the fishies went in. She looks a lot healthier today. I had a bit of a bacteria bloom 2 days ago after adding a pleco to it. The tank is clear today, and she seems better. But, just in case it happens again, maybe some feedback? Thanks!!!!!

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You definitely need to get a nitrite test. All pet or fish stores will carry them. Nitrite is the second stage of cycling a tank so even if you have no ammonia, you may have high nitrite readings which are dangerous as well. If you cannot pick up a test kit right away, I suggest doing a daily water change until you can. Your nitrites should be 0 - no exceptions.

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:boxed: I thought I had everything under control. I did soooo much research and I'm still missing stuff....please tell me I'm not the only one who's still learning :smokey:

I'll go right away and pick up a test kit. I did a water change 2 days ago...I'll do another one today.

Thanks for the help!!!!

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Well, my tank was fully cycled before the fish went in. Finaddict had the filter I have up and running for god knows how long. I took it home with all the water still in it and put it in my tank right away. My tank was 3 weeks before adding the fish. But, maybe for some reason that wasn't enough and I do have nitrites. I'll find out soon enough.

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Well, my tank was fully cycled before the fish went in. Finaddict had the filter I have up and running for god knows how long. I took it home with all the water still in it and put it in my tank right away. My tank was 3 weeks before adding the fish. But, maybe for some reason that wasn't enough and I do have nitrites. I'll find out soon enough.

You added a cycled filter to the tank and then ran it without fish for 3 weeks? Unless you were added ammonia for those 3 weeks(like in a fishless cycle) then all the bacteria in the filter died and you'd have to start the cycle over.

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I had the water cycled for 3 weeks prior to adding the big filter. The tank already had a filter on it. Then, I added the new water from the tank into the new big filter. well, I suppose it is possible that I have to start the cycle again. It seems that I did everything right. Should I remove the fish and then cycle the tank again?

Edited by turtlechick
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The bacteria in the filter need to be fed... by fish. If you had no fish in the tank, even a cycled filter will have all/most bacteria die off. Then you have to start the cycle all over again.

If you had a 'bacteria bloom' just from adding one fish, you probably had a minicycle. Keep your WCs up, probably every-other-day, see if you can get some cycled filter media on loan from a friend (squeeze a sponge into your filter intake, trade some biomedia).

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