Well, i want to upgrade so i can get more fish and for them to have more room. Im persuading family.
If your living with your parents, you cannot argue with their final descision on the matter as it inevitably comes down to who pays the bills for the place.
However, you can convince them a lot easier if you express how much better off your fish will be with a bigger tank- if your family is concerned about space, you can opt for a taller tank rather than a longer one.
Point out how nice the tank looks or how pretty the fish are, tell them how much better fish are than like cats or dogs, which are much more expensive and messy animals to keep.
Making sure you save up and pay for everything will also help convince your family a lot more, as if you are trying to get someone else to pay for the expenses, it will make it so much more harder to convince them that a bigger tank will be a better thing.
If you havn't got a job, getting one will also help massively in impressing your family on how committed you are to your fish keeping and how badly you need a new tank.
Help around the house and stuff, keep your room tidy and don't cause any trouble etc etc- inevitably, if you do this, you are going to get the tank especially if you pay for everything, the only excuse they can use against you to not getting a tank is the space issue. But as previously noted, you can always opt for a tank that is not much longer than your current one but is instead much taller so it wil still gain many gallons more

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