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Adding Fish
June 2, 2011
6:49 pm
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ender2811
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Is there some general rule on when to add the next batch of fish to a freshly cycled tank and also in what numbers can I add them without overloading the filter. The fish I have in mind are tetras, about 2-3 cm.

June 2, 2011
7:46 pm
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Senor Bastardo
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It all depend on the size of the tank what load you got on it etc.

So how big is the tank?

What filtration do you use?

How long has the tank been running?

How much fish do you already have in it and when did you add them?

June 2, 2011
10:07 pm
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ender2811
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Its a Rio 180 with an internal filter. Its been running for little over two months.
There are 2 D. rerio, 1 D. kyathit and 4 Corydoras paleatus. The danios were added 9 days ago and the corys 2 days ago. I know it doesn't seem like enough time for a full fishless cycle but the first batch was added after 4 days of 0 ammonia 0 nitrite readings. Its just that the cycle didn't go by the book shall we say. I wont bore u with the details here. I've kept testing daily since I added the fish. There was a nitrite reading of less than .05 on the second day after adding the danios. By the third day it was back to zero, and has been since. No ammonia readings for a long time.

June 3, 2011
6:51 am
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Bluedave
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I'd add 5 or 6 fish a week apart to let the bacteria catch up - test before you buy them, if there are any signs of ammonia or nitrite then leave another week.

You can get a maximum of about 55inches of fish in that tank, assuming regular water changes.

June 3, 2011
9:25 am
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ender2811
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I was thinking 4 so 5 or 6 is a bonus /biggrin.gif" style="vertical-align:middle" emoid=":D" border="0" alt="biggrin.gif" />.
When do you think it would be OK for me to stop testing on a daily basis?

June 3, 2011
4:19 pm
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Senor Bastardo
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Good answer Dave!

If you feed sparingly and keep up the water changes you don´t have to test the water daily. But as Dave wrote you should test it before you add more fish so you know everuthing is up to par.

As for the number of inches fish you can keep it really depends on the size of the fish. The same goes for how many you can add at once. There´s a huge difference between 2 10 inch fish and 10 2 inch fish.

June 3, 2011
5:05 pm
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ender2811
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Was thinking some smaller type tetras. Lemon, Ember, Black Neon, Flame, Rosy, Silvertip. Still haven't made up my mind. I think those are small enough to fit into the inch per gallon rule.
I know I don't have to test the water daily once the tank is established. But my setup is new so I'm a bit paranoid about something going wrong.

June 3, 2011
6:22 pm
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Bluedave
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Now you've got fish in and the latest readings were ok, just test once a week or before adding fish until your stocked up - then you can test as you feel fit - once a week if your paranoid, once every couple of weeks, once a month or never!

June 3, 2011
8:07 pm
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ender2811
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The choices are limitless /laugh.gif" style="vertical-align:middle" emoid="Laugh" border="0" alt="laugh.gif" />
Testing before a new batch it will be than my good sir, although never sounds convenient.

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