Not that I can see, though they may be weak from the high nitrates they are acting pretty normal. Here is the full tank shot, blue light still on but it was taken during the daytime. Thanks for any suggestionAh okay, I thought they where the penguins we talked about earlier. That's awesome! I coulda swore I saw their little tuxedos in the pictures you just showed. Like I told you earlier I LOVE penguin tetras. How is the trio holding up after settling in? Are they still showing signs of weakness or disease?