Dog Walking And Pet Home Sitting - Qp10

The correct answer is once. The word "recommended" suggests that there is a suggested frequency for cleaning the tank. The use of "should" indicates that it is necessary or advisable to follow this recommendation. Therefore, the tank should be cleaned out once a week based on the given information.

Clownfish are probably the most famous tropical marine fish due to the film Finding Nemo. In the movie, the character Nemo is a clownfish, which brought attention and popularity to this species. The film portrayed clownfish as colorful and charismatic creatures, leading to increased interest and recognition among the general public. As a result, clownfish have become widely known and recognized as one of the most famous tropical marine fish.

Fish are generally fairly easy to keep, but it is normally when the owner has gone on holiday that things can go wrong. This suggests that there may be specific challenges or risks associated with leaving fish unattended for an extended period of time. It implies that without proper care and attention, problems can arise during the owner's absence, potentially leading to negative consequences for the fish. Therefore, the statement "True" indicates that there is a higher likelihood of issues occurring when fish owners are on vacation.

20 percent of the water in the pond should be changed frequently with normal tap water. This is because changing a portion of the water helps to remove any accumulated pollutants, debris, or waste products, ensuring a healthier environment for the pond's ecosystem. Changing 20 percent strikes a balance between maintaining water quality and stability for the plants and animals living in the pond, while also minimizing any potential stress or disruption caused by a larger water change.

Egg goldfish are goldfish that have no dorsal fin. The absence of a dorsal fin is a distinguishing characteristic of egg goldfish. This feature sets them apart from other types of goldfish such as common goldfish, fantail goldfish, and dragon-eye goldfish, which all have a dorsal fin.

Koi carp cannot live for 40 or 50 years. While they are known to have a relatively long lifespan compared to other fish species, their average lifespan is typically around 20 to 30 years. Therefore, the statement that koi carp can live for 40 or 50 years is false.

Fish food can indeed range from flakes to pellets, but dead worms are not a common type of fish food. While some fish may eat worms, they are typically live or freeze-dried rather than dead. Therefore, the statement that fish food can range from flakes, pellets, to dead worms is false.