Triangular, octagonal or even polygonal fish tanks, the five elements belong to fire, and the parallel imports are complex, which is not suitable for the emerald layout in the financial position.
In the selection of filter materials, try to choose a filter material with high cost performance, and of course, you can choose a better filter material if economic conditions permit. According to different filtering forms, I choose filtering materials according to water permeability and volume. It is suggested to remove colored stones. Chemical stone is inferior to natural stone. In terms of quality and safety, if you want to decorate the fish tank with stones, you can consider using Qinglong stone, pine bark stone and volcanic stone. The best amount of fish to feed each time is to eat it within 3-5 minutes, and take out the unfinished fish 15 minutes later (to avoid bad water). If you really don't know how to control the feeding amount, you can feed it several times.
Also consider the cost of raising fish. Don't blindly choose precious feng shui fish, know the characteristics of ornamental fish to buy in advance. If you want to raise a good fish heart, you must be quiet, careful and have enough time and patience, so young people are busy raising fish.