07-02-2014, 04:40 PM
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Added too many fish at once-Nitrates
I should have known better. I ordered black bar and tiger endlers within the same two weeks. I added 13 endlers--most of which are only a few weeks old to my 10 gallon tank, which already held 2 Norman's Lamp eyes, a Honey Gourami and a GBR. I've been keeping fish for 6 years now, but for some reason, I forgot all about adding fish slowly. I was too excited about my new fish! Now, this morning I took a nitrate reading of that tank, and it was 40. I did a water change 4 days ago. I haven't had a reading that high since I cycled the tank 6 years ago. I know its not TERRIBLY high, but I'm concerned especially for the GBR, as I know they are sensitive. I did a 40% water change after I got the reading, and will check it again in 24 hours.
I have a 20 gallon, but I'm keeping most of the boy endlers in there, and most of the girls and a couple of boys in the 10 gallon. I also don't want to cross the black bars with the tigers, so as you can see, its confusing. A lot haven't even colored up yet so I don't know what sex they are. Otherwise, I'd put some into the 20 gallon, if that would help. I guess I could put some fry in there, but my endlers tend to "bug" newcomers to no end. The black bars pester the tigers, thinking they are females, I suppose. If the nitrates continue to run on the high side, what should I do? I've been scrubbing the media in my filter cartridges with my hands in tank water when I do water changes. This time, since adding the new fish, I noticed the cartridge was a lot dirtier than it normally is. Should I continue this practice? Or only scrub or swish it once a month or so?