Another cool vid! It's fun to visit your cast of characters. Did the little seagrass make it? I didn't see it. If not, my guess would be inadequate light. I know you have better lights for the cube.
Your root project looks great! I can't wait to see the final result. If I had one criticism, it would be that it's maybe a little large. I had the same issue with mine - it came out bigger than I expected. You'll make it work. Once you get the rest of the scaping done it will all come together.
What do you plan to put in this tank? Keep us informed!
Thank you Michael. The seagrass didn't make it, I think. My fish, or perhaps the crabs, uprooted it. I don't think that the fish would uproot a more substantial root system. I should have transferred it to my other tank. It was cool to see though.
As far as the roots go, they will serve the purpose of hiding a rather large and powerful powerhead. I had planned the size around this idea. Yeah, they're large, but with lighting, it should look nice with a shaded area too, just like my section of a stream undercut bank. Unfortunately, they hide some of the nicer parts of the faux rock. I can always choose to remove the roots though, because they won't be permanently affixed in the tank, if they become an eyesore or don't look good. I'm hoping for the best, LOL.
Leading to what will be in this tank...It's a native stream tank that will support minnows, shiners and darters found locally to me. I may or may not keep sculpins, madtoms, or small sunfish, as long as I have a plan to relocate them to our local public aquarium in place first. These latter fish tend to eat darters, and they're going to really be the feature fish of this tank.
Oh, by the way, I meant to tell you that I had your suggestions in mind when I was carving the foam off the roots, trying to get as much off as I could to keep them from being too buoyant. On the back side, I'd hollowed them out, nice and out of sight. From the front and sides, they look full.