MY ECOCOLUMN

My aquarium started with two snails  and some plants rocks  one snail died. Some plants died when the snail died there was some algae . A coupel weeks later the other snail had to babies but one  died . my terrarium has a lot of dirt and some animals like a slug and a snail .

Well plants gives oxygen to fish and fish give carbon dioxide  to plants . Plants give homes for small animals .Dead plants provide energy for decompose  fertilizer soil (give nutrients)

have you ever had a ecocolumn?