
What type of material would you use to fix this
World War 1 lifeboat, friend is doing a repair to patch the cracks and it had previously had automobile bondo used on it (thats the white). I was thinking just fiberglass but maybe something thicker?

World War 1 lifeboat, friend is doing a repair to patch the cracks and it had previously had automobile bondo used on it (thats the white). I was thinking just fiberglass but maybe something thicker?
I'd like to make a small urn out of either an agate or another local stone i can find. What type of tool would I need to hallow out a stone? I have no experience with rock carving, I've just been a rock collector and tumbler for years
I live in BC, zone 6b, and would love some sort of algae eating fish as well as some plants that survive the winter. The top pond is a 380l tank, and the bottom is 440l I think. I currently have 4 goldfish in the top pond, we are going to put 2 in the bottom, and winter all 6 in the bottom hopefully as its 2ft deep.
I built the waterfall over the winter with a pallet and alot of resin and rocks i found and polished.
There are somethings I would have done different if I knew more about how it would turn out, as we were building and designing this largely with free supplies we found. The top drains into the bottom via 3 black tubes so I can adjust the waterfall flow to be heavier if I want. But maybe those should have been near the bottom of the tank instead as they suck air and burp loudly.
I also would have made the two ponds closer together, so I could do a fish bridge for the fish to get from one tank to the other.
Any feedback and such would be appreciated!