How to care for aquarium fish: a complete week-by-week routine

What actually matters here

Fishkeeping is water chemistry. Cycling a tank before adding fish, testing ammonia and nitrite, and doing regular partial water changes prevents nearly all early losses. Tank size is about waste dilution as much as swimming room.

None of this replaces veterinary advice. Anything involving illness, injury, medication or a change to a therapeutic diet belongs with a licensed veterinarian who has examined the animal.

Every household is a little different, so treat the routine below as a starting template you adjust rather than a rulebook.

Do these four things first

If you only change four things this month, change these. They cover most of the day-to-day and none of them take long.

• Cycle the tank fully before adding any fish
• Test water weekly during the first two months
• Do regular partial water changes rather than full ones
• Research adult size and social needs before stocking

The mistake to avoid

Adding fish to a brand-new uncycled tank.

It is worth writing that one down somewhere the whole household can see, because these errors are almost always made by the person who was not part of the original conversation.

A realistic weekly rhythm

Daily: food, water, movement or enrichment, and a two-minute look-over for limps, lumps, sore ears, dirty eyes or changed toileting. Weekly: grooming, enclosure or bedding cleaning, nail check, and a quick top-up of supplies. Monthly: weigh the animal and write the number down, check that preventive medication is current, and walk the property for new hazards.

Yearly: a full veterinary exam, an honest review of whether the routine still fits your life, and a refresh of the emergency plan — who takes the animal if you are in hospital, and where the carrier, records and medication live.

Writing this on the fridge does more than any app. Households fail at animal care through diffusion of responsibility, not through lack of goodwill.

Local veterinary clinics and contacts

These are publicly listed Prince George animal-care contacts, provided for convenience. Hours, services and whether a clinic is accepting new patients change often, so phone or check the website before you rely on any of it. In an emergency, call ahead so the team can prepare for your arrival.

• Prince George Veterinary Hospital — Small-animal veterinary hospital serving Prince George and the surrounding region.
• Murdoch Veterinary Clinic — Veterinarians, registered veterinary technologists and equine resources. · 2933 Gunn Rd., Prince George, BC V2N 2H8 · murdochvet.com
• Birchwood Veterinary Clinic — Cats, dogs and exotic pets; weekday and Saturday hours. · 250-561-6500 · birchwoodvet.ca
• Hart Family Veterinary Clinic — Locally owned small-animal clinic in the Hart. · 3708 Austin Road West, Prince George, BC · hartfamilyvet.com
• Ospika Animal Hospital — Long-established Prince George practice offering in-clinic and virtual appointments. · ospikavet.com
• College Heights Veterinary Clinic — Full-service clinic in the College Heights area. · chvc.ca
• Green Mobile Veterinary Services — Mobile veterinary service, contacted by phone or text. · 250-640-3784 · greenmobileveterinary.ca
• BC SPCA (North Cariboo District Branch) — Adoption, surrender support and animal-cruelty reporting. · spca.bc.ca
• BC Conservation Officer Service — RAPP line — Report a bear, moose or other wildlife conflict in a residential area. · 1-877-952-7277

Through the year in Prince George

Spring (March to May) brings mud, thaw, and the return of bears looking for the first easy food of the year. Attractants go away now, not in June.

Summer means long daylight, heat on paws and in parked vehicles, wildfire smoke that affects animals with airways just as it affects people, and busy trails.

Autumn is the heaviest wildlife-conflict season as animals feed hard before winter, and it is the right time for a pre-winter health check.

Winter runs long here. Cold injury, ice, salted sidewalks, dry indoor air and dark walk times are the whole list, and every one of them is manageable with gear and timing.

A daily two-minute health check

The most useful habit any owner can build is a short, unhurried look-over each day. Eyes clear, ears clean, nose and gums normal, coat flat and unmatted, no limping on the first few steps after rest, appetite and thirst unchanged, and toileting the same as yesterday.

Write down anything unusual with the date. Two data points a week apart are worth far more to a veterinarian than a vague memory, and a photograph of a lump beside a coin is worth more still.

• Eyes, ears, nose and gums
• Coat, skin and any new lumps
• First steps after rest — stiffness or limping
• Food, water and toileting changes
• Weight, checked and written down monthly

When to phone a veterinarian instead of waiting

Some situations do not benefit from a wait-and-see approach. Laboured or noisy breathing, collapse, seizures, repeated unproductive retching with a swollen abdomen, straining to urinate with nothing produced, uncontrolled bleeding, suspected poisoning, a suspected fracture, or any animal that has stopped eating for a day and is not itself — all of these warrant a phone call straight away.

Phone first rather than simply driving over. The clinic can tell you what to bring, prepare a room, and in some cases start advising you on the phone while you travel. Have the animal's weight, current medications and any packaging from a suspected toxin ready when you call.

Nothing in this article is a diagnosis. It is written to help you recognise when a professional is needed, not to replace one.

Budgeting honestly for the animal's whole life

The purchase or adoption fee is the smallest cost an animal will ever generate. Food, preventive medicine, parasite control, dental care, grooming, boarding or pet sitting, licensing and replacement equipment run every year, and an emergency can arrive in any of them.

Two approaches work: pet insurance taken out while the animal is young and healthy, or a dedicated savings account funded automatically each month. What does not work is having neither and making medical decisions under financial pressure in a waiting room.

Ask for a written estimate before any planned procedure. Good clinics expect the question and answer it plainly.

Travel, boarding and who takes over if you cannot

Every household with an animal needs a named backup — a person who has agreed in advance, knows where the food, records, carrier and medication are, and has a key. Illness and hospital stays are the situations that catch people out, and they arrive without notice.

Write a single page and stick it inside a cupboard door: the animal's name, age, weight, diet and amounts, medication and doses, clinic name and number, microchip number, and the backup carer's phone number. It takes ten minutes and it has saved a lot of animals a bad week.

Key points to remember

Everything above comes back to a few ideas worth keeping: Steady routine, measured food, early veterinary attention and honest matching of animal to household — that is most of good pet ownership.

Work through it in small, repeatable steps rather than in one push, write down whatever you decide so the next person does not have to rediscover it, and ask for help early rather than at the point where the problem has become urgent.