in all honesty, your shovelnose and knifefish are relatively easy and cheap to replace.
I wouldn't stress it too much.
the bigger problem, would be not only providing oxygen to your fish, but also your beneficial bacteria colony, which probably uses more oxygen. the plants will also use up oxygen while lights are not available.
I wouldn't stress it too much.
the bigger problem, would be not only providing oxygen to your fish, but also your beneficial bacteria colony, which probably uses more oxygen. the plants will also use up oxygen while lights are not available.