Okay, I patched it up. Thanks to you guys, I'm able to start some foreground objects instead of messing with the filter screwup.
I actually have been working on the tree and the bracket fungi. I'm reinforcing the bracket fungi with Styrofoam knobs and holes and some glue because they can come off pretty easy if they aren't secured properly.
I added another hole to the tree more towards the top so that more fish can claim territory without just one hole belonging to one fish. What do you guys think about it? I can always fill it back up and it will look like it never was there if it doesn't look so great.
I am going to build some "chimneys" on the tree through the knot holes because my fish will end up blowing some bubbles into the caves, but with a chimney, the bubbles will just float to the top of the tank through the chimney instead of staying in the cave without any escape. (I hope you understand what I mean, I'm not so great at explanations)
I'm trying to figure out a way to "hide" the heater because it is very ugly and I don't want it ruining the look of the background. Do you guys have any ideas?