Hi, I would like to first say thanks for all the help I've gotten so far on this forum! (If you don't get rep it is cause i gotta "spread it around" lol).
I have a list of questions and I don't know which to ask first so I shall post some pictures for you to look at (the top pic is just to show the first ever design).

Just FYI, I have a 40g cube and 40g sump
So my questions:
I have a list of questions and I don't know which to ask first so I shall post some pictures for you to look at (the top pic is just to show the first ever design).

Just FYI, I have a 40g cube and 40g sump
So my questions:
- In the pictures above, you notice they are using wood. These questions correspond to those:
- If it was plain unfinished wood, what wood would you think they used?
- If it was finished, what would have been used in your opinion?
- If it was plain unfinished wood, what wood would you think they used?
- Would you use aquarium silicone to seal the boards (like sides and drains)?
- What size (of mesh) would I need to retrofit my system? I would assume it is limiting by the size and availability of nutrients
- I also thought of just lining it with pond liner (what do you think)?


