In my opinion, your tank REALLY ROCKS!!! Really cool with all those yumas.
Btw, I am a teacher and my project groups students are going to start a tank and then they are going to learn to grow and frag mushrooms/yumas/rics etc for their project.
So I hope that during your rescaping, if then of the yumas drops off, can you donate to me please so that I can let my students "multiply" it for you.
The school is in Hougang. Thanks.