[medicineman]

Thanks for the compliments.

So far, the only bloom I witnessed are of echinodorus and saggitaria.
This pond-tank after all is a bit restricted on natural sunlight (which I found is best to induce flowering). Not so easy to beat mother nature I guess.

Right now the setup is under a major maintenance.
Abnormal water loss is the cause. I've had enough with re-topping the setup each morning (and sometimes I had to do it at night to prevent the main pump from chugging too much of damaging air). It could be somewhere over 10 gallon water lost over a day period.
I found out that the filter box is where it leaks the most. There was this several hours blackout and water level in the filter dropped down, even after all excess overflow is drained automatically.

And so emergency DIY filter is set up and additional small powerheads installed while water level is lowered. Work on the filter box in undergoing, all material taken out, chamber torn down and all surface chipped out.
The leak is somewhere and a good, thorough chipping is necessary.

Adjustments will be made such as mending the source of leak, enlarging filter capacity, raising stationary water level and rerouting water way passing the chambers.