i saw that website to. with the 4x4s. you did a good job
nice picture... one thing to consider is.. are you using an acrylic or glass aquarium? acrylic needs support all around and bottom.. glass.. only on the edge. with regards to 4x4 that might be still wet... it can have an impact... try letting it dry up on the sun for 2-3 weeks. and use a leveler see the change if their is.. if none then i think it's fine.
nice picture... one thing to consider is.. are you using an acrylic or glass aquarium? acrylic needs support all around and bottom.. glass.. only on the edge. with regards to 4x4 that might be still wet... it can have an impact... try letting it dry up on the sun for 2-3 weeks. and use a leveler see the change if their is.. if none then i think it's fine.

