At a paint store purchase some marine paint, also known as “copper paint,” and give the wood-work two or three thin successive coats, allowing it to dry for a few days between each coat. Scrape the paint from the glass where it may have been smeared, and the complete aquarium is ready for water and stock.
Another way in which to construct the framework is to take a curtain-pole one and a half inches in diameter, and at a planing-mill have a quarter section sawed out, as shown at Fig. 17, so that an end rim will appear as shown at B. The part of the wood-work the buzz-saw cuts away will correspond with the grooves cut in the square sticks.
Fig. 17 Fig. 18 Fig. 19 Fig. 20 Fig. 21 Fig. 22 ]
Four holes one and a half inches in diameter, or the same size as the stick, are bored half-way-through the bottom-board of the aquarium and V-shaped channels are cut in the board connecting the holes (Fig. 18). The wood-work is treated in a manner similar to that already described, and the corner-posts are held in place by long brass screws driven up through the bottom and into the lower ends of the posts. The top rail is made the same as shown in Fig. 15 C, and the glass is set as described. At the corner-posts the lap is well smeared with asphaltum varnish and putty and the angle strips are screwed fast to the posts as indicated at A in Fig. 17. While this is somewhat easier to make it is not quite so substantial for large tanks as the square post and channels.
When catching the stock for the aquarium it is best to use a drop-net. This is made of two iron hoops fifteen or twenty inches in diameter and held one below the other with cord as shown at Fig. 19. Mosquito-netting is drawn across the lower hoop and sewed fast; then a band of it is sewed about both hoops to close in the sides, to form a cylinder open at the top only. Some bait is placed in the bottom of the net, and then it is lowered into the water so that the top hoop drops down and the whole net lies flat on the bottom of a pond. When a number of fish are around the bait a quick haul will raise the upper ring; then pull the net up with the fish captives within the cylinder. You can quickly select the ones you want, and these may be placed in a pail partly filled with water.