You should have valves on your outflow. Just close them off a bit so that the water doesn't drain as fast and keep the inflow into the tank on max.
The tank has been up and running for about 4 years with the only fish losses being eaten fish. I have no water quality problems at all I was just bored
I just cleaned the tank, set up the filters/heater, and put water back into a tank that I emptied out over a year ago due to a move. I got Tetra Safestart
an 18# ham for easter dinner
fry only tank doesn't need any plants.. btw otocinclus will prob eat fry and they don't keep well unless the tank is established with lots of plants(algae)