Kill parasites, raise pH of acidic water, increase alkaline in water and mud, enhance fertilization.
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20
Give 2 water quality problems.
High turbidity, pesticide, high nutrient, high organic matter, acidic water, industrial pollusion.
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15
How to differentiate fish male and female?
Genital part.
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15
2 chemicals to remove unwanted species.
rotenone, tea seed cake, saponin
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trap
No points!
Oops!
rocket
Go to first place!
Okay!
fairy
Take points!
5
10
15
20
25
lifesaver
Give 15 points!
Oops!
20
Total alkalinity vs water hardness
Total alkalinity = measure of its total concentration in carbonates* and bicarbonates* , Water hardness = measure of the amount of calcium and magnesium present
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15
Prebiotic vs probiotic.
Probiotic - bacteria, prebiotic = food
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boom
Lose 50 points!
Oops!
star
Double points!
Okay!
gift
Win 20 points!
Okay!
banana
Go to last place!
Oops!
15
Difference between disinfectant and antiseptic.
Disinfectant: non-living matter, antiseptic: living organisms.
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20
Give TWO purposes of using drugs in aquaculture.
to control mortality associated with bacterial diseases or infestation density of parasites, sedate or anesthetize fish, induce spawning, change gender.
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15
Give 2 chemicals to disinfect the tank.
Chlorine, Iodophor
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15
Function of salt in aquaculture.
As a parasiticide to control external parasites of freshwater fish, Prevent and treat nitrite poisoning or โBrown Blood Diseaseโ, Transport of handle fish.