Transparent tank is better to paste one side of the background paper, not all sides of the full transparent.

The bottom of the tank should be made of coarse sand or gravel, and the water should be trapped for a day before use.

Hawks like flowing water, you can add a filter.

The wild need to adapt to a period of time to start, do not rush to feed, into the tank after three days of rest, you can try to use dried shrimp, earthworms and other fishy bait, as long as the initiative to take the food is generally not a big problem.