1. The LFS personnel I've spoken with have all been politely baffled why I would want a planted tank with an overflow, always citing CO2 loss. I'm moving away from a wet/dry configuration to one with more filtration media but am concerned about the need for more O2 without materially lowering the CO2.
2. This is now going to be a peninsula tank, still with the absolute minimum amount of equipment in the tank, powerheads in this case. How strong a pump do I need to get coverage the length of the tank (nominally 48")?
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