The usual recommendations are about 10 – 12 grams of unrefined rock salt per liter of water.
Your aeration seems OK as the eggs are suspended in the solution. You may like to increase it a bit though.
The eggs should hatch in 30 – 36 hrs at the temperature indicated. Try to feed the hatched brine shrimp within about 10 – 12 hours of hatching for maximal nutritional benefits.
I don’t worry about temp so much. You’re going to a lot of trouble! I use the Ziss hatchery with decapsulated eggs. Fill the container with regular tap water and 3 tbls aquarium salt.
skaggerik 
Parameters:
27,8°C
Tap water pH 8
Tap water kH 4
Ingredients:
1000 ml water
25 g NaCl
0,5 g Sodium bicarbonate
1 g eggs
Questions:
Everyone seems to use different amounts of salt, which concentration should give the best hatching rate?
Do you think the aeration is at a suitable level?
I just use a table spoon loser salt id guess yours will hatch 36 hours.
I use the same formula minus the bicarbonate. Eggs typically hatch in 24-36 hours. Make sure to use non-iodized salt.
The usual recommendations are about 10 – 12 grams of unrefined rock salt per liter of water.
Your aeration seems OK as the eggs are suspended in the solution. You may like to increase it a bit though.
The eggs should hatch in 30 – 36 hrs at the temperature indicated. Try to feed the hatched brine shrimp within about 10 – 12 hours of hatching for maximal nutritional benefits.
Happy fish keeping!
I don’t worry about temp so much. You’re going to a lot of trouble! I use the Ziss hatchery with decapsulated eggs. Fill the container with regular tap water and 3 tbls aquarium salt.