G'day.  I love this mod: the tree growth feels realistic, and appropriate.  Also, mostly unnoticeable: it clearly happens, but not so fast that it breaks immersion.
Before I found your mod, waaay back, I used the "Fish and Wildlife" mod which also respawns fish.  It wasn't tuned the way I would like it to be for tree growth, and wasn't an good on pollution etc, so I prefer your mod.
I'd kind of love it if you would add fish spawning as well -- either to this, or as a separate but similar mod.  
Also, thank you so much for all your mods, they are pretty much all awesome.