Yep mine do that and right after the lights come on. It usually takes a few minutes for the red to come back.
I love the Rummynose Tetras!! I plan on getting about 8 of them in my 60 in the future. I also like Black Neons...they look pretty neat when they school together.
I have 8 now! I don't know what it is but they won't follow my finger on the tank like in the store and I've had them for a few weeks
Mine don't follow my finger and I've had all 8 for over a year
I had rummies in with an angel which didn't work as the angel was fin nipping them and also had rummies with a male betta which worked great
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The tank with the angel was 100l and the betta was smaller but cant remember.
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