Fish

Question 1

How much water is required to accurately test a tank environment?

Answer 1

500ml within 24 hours of removal from the tank

Question 2

When sampling water from a tank, what does high pH indicate?

Answer 2

Ammonia (due to overcrowding, decomposed plants or a damaged filter)

Question 3

When sampling water from a tank, what does a low pH indicate?

Answer 3

Tap water- containing chlorine/chloramine

Question 4

What is the minimum requirements for tank size?

Answer 4

30 x 30 x 45cm - 36L of water

Question 5

What measurable clinical signs can be used to identify sick fish?

Answer 5

Resp rate
Food consumption
Posture in water column
Behaviour e.g. shoaling, isolation hyper/hypoactive

Question 6

Which agent is commonly used to anaesthetise fish?

Answer 6

MS222 (tricaine methane sulphate)

Question 7

How can anaesthesia depth be assessed in fish?

Answer 7

Ataxia
Loss of righting reflex
Loss of response to stimuli e.g. tail pinch
Gill colour
Operculum rate (resps)

Question 8

What is the aetiology of white spot?

Answer 8

Ichthyophthirius multifilis

Question 9

What is the aetiology of velvet disease?

Answer 9

Piccinoodinium pilllare

Question 10

Which mycobacteria species are problematic in fish?

Answer 10

M. Marinum and M. fortuitum (both zoonotic)

Question 11

What is the most common water mould disease?

Answer 11

Saprolegnia (gives white cotton wool appearance of head/fins)