When I right click on my mana pool with the wand, I see the little HUD but the mana bar don't grow at all, I can transform iron into manasteel ingot etc...
But it's really disturbing.
I join a screen shot of that.

Actually, the Mana pool stores quite a bit of mana. The Dayblooms produce very little. It takes a few Thermalilies (supergenerationflowers) to actually see progress. Wait around a bit longer. Or move to a better power source.

I've another power source (endoflame + hydroangeas).
But now the bar is moving (a little bit) but I still can make manasteel ingot without enough mana so it's strange :D