self sustaining

So due to disability I’ve had to reluctantly give up my last remaining 500l aquarium of American Cichlids. A lifelong hobby over & I’m gutted 😞! I was always under the impression that larger tanks were easier to keep. A lot of people have been suggesting I should get a small, planted aquarium &...

hi, so i know there have been talks of how often do you need to do water changes and often the answer correlates to the amount of plants you have in the tank. i was just wondering how many plants would you require to make the tank self sustain? or is it the case that there just isn't enough...