How To Remove Varnish From A Bathtub

Since I solved the problem of the farm, my father pulled out of different material and redo it with the glass walls instead of synthetic glass, so yesterday we went to buy two beautiful slabs of PVC foam (especially plastic) and 4 slides.
This, after an afternoon of circular saws, glues of any kind, pencils, measuring and rampant hunting of the mosquitoes that threatened our skin throughout the work (of course finite for dinner in the colonies), is the result:

size are small compared to the first, it is now 30x20x1, 5 40x30x1 against, 8, first it seemed too big for the ants so small and too large a chance to see the tunnels had been reduced. Also this is much stronger and built better (after all he did for work ... can never know what you two poor boys how to do these things), without problems of enlargement of the glass will crack unexpected.

In fact a couple of problems have arisen anyway ...
1 - the colored sand so well prepared in the first nest was moved to the new one, but do not mix all the colors in bulk ... how? I started the idea of \u200b\u200busing a vacuum cleaner with a Cannetta attacked in front, but the lack of clean bags and little desire to turn the city to look for them, plus the fact that my attempts to deceive the vacuum cleaner bags and other various tricks are completely bankrupt, made me reject the idea. In a question and another I thought, Oh well I take sand gradually being careful and separate the colors ... with what? Then after half an hour of laps in the house to look for something suitable, I found a plastic spoon that I have carefully tooled flared at the sides until they would come between the two walls of plexiglass, and a pen to make a handle here that I had my scoop!

2 - the test did not enter the width between the glass walls ç_ç so I connected the farm arena with plastic tube and I put the tube into the arena, I guess when they are ready to go alone to find a new nest.
Actually I wanted to wait to use the arena because I wanted to go to get the Navy to put sand on the bottom, but I had to fend cn colored sand avanzatami mixing it a bit, tentatively to be just fine.

next step is to complete the other farm, buy another tank / arena and settle the Colony I (Indians) than anything else, I just noticed it has filed half a dozen eggs tube just did! Fantastic!