Just check the tanks.

• For the morning part, feed powder food to them.
• For the afternoon part, feed Artemia. Use the bottle prepared 2 days ago (see the daily check sheet in the biotron).

1. Shake and mix the stock bottle prepared at least 2 days ago.
2. Filter huge particles including live/dead Artemia, hatched egg shells and unhatched eggs using fine mesh.
3. Wash filtered particles with breeding-quality water (Cl-) to wash salt out.
4. Collect washed particle in the 50mL tube and incubate for some minutes.
5. Since unhatched eggs quickly sink and hatched egg shells don't sink, incubated tube will show 3 layers; brown unhatched eggs on the bottom, moving live Arteimia above the unhatched egg layer and hatched egg shells on the top of the tube.
6. Collect live Artemia with plastic pipette carefully and check if live Artemia is successfully collected. Then feed it to fish.

1. Wash the bottle (you prepare stock for the bottle which you used at the day)
2. Put a half cup of dried Artemia, 3 cups of salt and 500mL breeding-quality water.
3. Mix and put an air stone into the bottle. Check the bubbling! Without enough air supply, they don't hatch and all die.

Clean the water outlet of each tank with a brush. Without this process, tanks become full and fish can come out from the top of the tank. This causes a possibility of fish strain contamination!

Wash the mesh filter on the inlet of big tank under the shelf. If they are too dirty, change with new one (cut the stock filter for the appropriate size).

Water in the lower big tank immediately evaporate, so make it always full. In this case, you can use the water tap above the tank but make sure it is closed after use.

Count the number of fish in the specific tank (noted on the daily checksheet)