Grow little guys... grow.
Join Date: Mar 2008
Location: Chicago, IL
Speaking of blackouts... I just experienced the following with my HC test tanks:
I have two tanks with HC carpets. One was grown without CO2, the other with CO2. As far as compactness and growth density, they look identical. However, when I moved my tanks from LA to San Francisco, they both got green water after the move. So, I tried a 3 day blackout, which I had never done before (in a hotel room nonetheless)...
When I took the black plastic bags off the tank with CO2, all of the HC had melted COMPLETELY! :-( However, when I opened the non-CO2 tank, it was completely normal with no degradation at all.
The melted tank had some sort of nasty grey water that smelled awful, obviously; while the good tank was completely clear of the green water.
I'm actually interested to see how the melted HC regrows, i.e. if there was enough established roots etc. If it has a good root system, it should be pretty tenacious even if cut all the way back to the substrate (similar to glosso). Just three days after the disaster, I noticed several tiny emerging leaves on the ruined network of runners. So I think it will regrow.
But at the same time, I'm wondering why the tank with CO2 melted during the blackout? In reading further about doing blackouts, many wrote that they turned off the CO2, but mine is controlled with a pH controller. But it really is the only difference between the two tanks during the blackout.
Jeremy Squires, Toronto, ON
One should never have to decide between chocolate, cake, or cookies.