Plastic plants may look OK but they will not be helping the balance of things in your aquarium. Live plants will use up impurities like Nitrates and will also add Oxygen to the water. Live plants are definitely the way to go.
No, there are special live plants grown just for fresh water or salt water fish aquariums. There are also plastic fake plants that are made for all aquariums.
Yes! All of my freshwater fish have plastic plants.
I have a 75-gallon freshwater aquarium with several different species of plants. The one I found to be very popular and easy to grow either in the substrate or just let it float is water wisteria. My fish love to swim underneath the floating water wisteria. I wrote a paper on aquarium plants at the link.
There is no such thing as a "self cleaning tank(aquarium)" if you are too lazy to clean a tank you should not consider having one.
Moldy cheese or an eyeball
A fresh turkey can be safely stored in the fridge for up to 2 days before cooking.
yes. please provide tips on fresh water aquarium fish too.
A fresh uncooked turkey can be safely kept in the fridge for up to 2 days before cooking it.
the plastic one
As a decoration, maybe. As a living entity--NOPE.
As fresh as a daisy
You can raise a sea urchin in a salt-water aquarium. There are no fresh water sea urchins so you would need a salt-water aquarium to properly care for the urchin.