Honestly, i would say the amount of work you work have to put into a Planted Freshwater tank, VS a Saltwater Tank would more or less be the same... since depending on the types of plants you use, you'll more or less have to trim them every week once its all grown in properly...
On the other hand, if you were to do a straight Freshwater tank with just fish and hardscape, i could see your parents possibly willing to help out, and actually able to keep up with the load while your away for school IF they have an interest in keeping fish...
Yeah IMO the planted tank just seems like more work then a saltwater.
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