VetShopAustralia’s resident vet Dr Mark answers your pet
medical questions. This week’s question is from a reader seeking advice on how
to keep their fish bowl clean.
Question:
Hi Dr Mark, I have a pet fish and I can’t seem to keep the
bowl clean! I change a third of the water every week, like you’re supposed to,
but it still looks really cloudy and gross. I use an aquarium cleaner too. Do
you have any advice?
Thanks,
Tim.
Answer:
Hi Tim, the most important thing in keeping fish is having
healthy water. The saying goes “Healthy water equals healthy fish!” Healthy
water is not necessarily crystal-clear water, which can still have toxins in it
and be a death trap for fish.
Uneaten food, decaying plants and fish waste break down to
form a dangerous and toxic chemical, ammonia, which can accumulate in a tank to
lethal levels for your fish. Fortunately, over time, beneficial bacteria can
grow in the aquarium, breaking down this lethal chemical into products that are
safe for fish. This process, called the nitrogen cycle, takes time – about six
to seven weeks to occur. Water testing and partial water changes will help to
keep your fish healthy while this process is happening.
Once your tank is established, a filtration system is an
easy and effective way to keep the water clean. Filter cartridges remove
impurities, odours and discolouration from the water but must be regularly changed
every three to four weeks. Use an algae pad to remove algae from the sides of
the aquarium. Make sure that any pad you use hasn’t come into contact with any
chemicals or detergent.
A siphon hose or pump can then be used to remove waste and
debris from the gravel, rocks, decorations and plants. If algae are a problem,
consider introducing algae-eating fish, shrimp or snails into your aquarium.
If you clean your tank regularly and your fish are healthy,
changing 10 to 20 per cent of the water once a week should be plenty. A small
amount of maintenance each week should keep your fish happy and heathy and your
tank looking good.
All the best,
Dr Mark.
Do you have a question or need some advice from
VetShopAustralia’s resident vet, Dr Mark? Post your questions in the comments
below!