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Post by jeremyh81 on Nov 1, 2009 9:00:55 GMT -6
I've noticed that a couple of my newest zebras are starting to turn a yellowish color. Not sure of the ammonia and nitrite levels at the moment, as I had to trash my test tubes due to staining. However, I did perform a 40% water change Friday evening. I've also read that zebras will adapt their coloring to the environment. Should I be alarmed? They're all very active at the moment, chasing each other around the tank. I can post pics as needed. Just need to get them to stay still long enough to catch them!  |
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Post by jeremyh81 on Nov 1, 2009 9:55:52 GMT -6
So almost an hour after I mention this, the danios are showing less yellow.  I'm thinking it could be the lighting. I have 1 25-watt T5, 6700k, and a 14-watt T8, full spectrum (guessing), and I think the ballast in the T8 fixture needs to be replaced because the bulb takes a little while to "warm up". The fixture is an AllGlass style 24", which was used when I got it. |
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angel
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My Husband's A Birdbrain
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Post by angel on Nov 1, 2009 11:40:01 GMT -6
I don't know anything about danios but lots of fish can change colors depending on mood and environment too. So it could maybe be something like that if not lighting?
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Post by jeremyh81 on Nov 2, 2009 16:49:12 GMT -6
I'm thinking this is a false alarm.
All of the zebras have some color variations in them, from light green to slightly yellow. I read somewhere that males can have yellow stripes between the blues and females have silver & blue stripes. These 2 were purchased about 2 weeks after the first 6 and are smaller than the rest, so I bet they're still just adolescents.
Now I need some cories to contrast the colors of the danios and the substrate! Just waiting on my extra water test tubes to arrive before I add more fish!
BTW, the 29 is clean, but I think during the silicone removal from the walls, I created a leak or two. Waiting for all of the water to dry before I try re-caulking all joints.
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angel
FORUM BEGINNER
My Husband's A Birdbrain
Posts: 40
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Post by angel on Nov 2, 2009 16:56:39 GMT -6
Oops! I'd not want that job!
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Post by jeremyh81 on Nov 2, 2009 17:19:32 GMT -6
Oops! I'd not want that job! Yup, big oopsie there! The suspected leak is at the bottom. If it doesn't hold water, I can at least sell it as a reptile or hermit crab tank.  |
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Post by jeremyh81 on Jan 27, 2010 18:56:49 GMT -6
Update on the yellow danio: I'm starting to think that this may actually be a hybrid yellow/golden longfin zebra. Its color has not changed since November, and I know the water quality is good (still haven't killed any ottos).
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I'm thinking it could be the lighting. I have 1 25-watt T5, 6700k, and a 14-watt T8, full spectrum (guessing), and I think the ballast in the T8 fixture needs to be replaced because the bulb takes a little while to "warm up". The fixture is an AllGlass style 24", which was used when I got it.
