Revision questions and answers for week five's maintenance and husbandry module.
In this quick revision, the important thing to remember is that you are aiming to pick out the specific facts relevant to the question. The final test at the end of the diploma will not be the kind of test that requires hundreds of words — no part of it runs as an essay. Instead, it will be conducted in the form of multiple-choice answers to a series of questions.
The layout below is a selection of practice questions, each of which probe your knowledge on the module you have just covered. Though they’re not laid out as multiple-choice questions and answers, they are designed to stimulate your mind to re-explore some of the main areas you’ll be tested on.
1) What is the danger of positioning a tank near a radiator?
2) What is the purpose of a ‘drip loop’?
3) What is the term used to describe the combined mass of fish in a tank?
4) Using the cm (fish) per litre (water) method, what is the maximum combined length of fish an 80-litre tank with external canister filters could hold?
5) What should be the maximum depth of a coarse gravel substrate in a typical community tank?
6) What type of decoration can discolour aquarium water?
7) Cheap ornaments with harmful paints may affect which type of fish mainly?
8) Which type of fish produces a more constant stream of ammonia — a grazer or an opportunistic predator?
9) Which is more expensive to use for waterchanges — RO or tapwater?
10) Why should you not cap test tubes for water tests with your fingers?
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Answers
1) Overheating or fluctuations in temperature are dangers of positioning a tank near a radiator.
2) The purpose of a drip loop is to stop water running into electrical points.
3) The term used to describe the combined mass of fish in a tank is stocking density.
4) On the cm (fish) per litre (water) method, an 80-litre tank with external canisters could hold 144cm of fish in total.
5) The maximum depth of a coarse gravel substrate in a typical community tank should be 5cm.
6) Wood and/or leaf litter can discolour aquarium water.
7) Suckermouth catfishes may be affected by ornaments with harmful paint.
8) Grazers produce a more constant stream of ammonia.
9) RO water is more expensive than tapwater.
10) You should not cap water testing test tubes with a finger as this is a health risk and will contaminate tests.