It never hurts to have a filter it will only improve your fish's chances of survival and decrease your need to clean.
1 gallon of fresh water is about 8.36 pounds
If you have equal volumes, the salt water will weigh more.
It never hurts to have a filter it will only improve your fish's chances of survival and decrease your need to clean.
How do I check or change my filter on my fresh water well?
Oxygen is more soluble in fresh water.
Freshwater has more oxygen than salt water but oxygen is more solublein fresh water.
The weight of fresh water is largely dependent on its temperature. A US gallon of fresh water weighs about 8.328676 pounds at 70 degrees F.
Yes, every fish tank should have a filter, but depending on the kind of fish it can be exempt. If not an air bubbler is a good idea. The filter cleans the tank, along with putting oxygen in the water, and the air bubbler also puts necessary oxygen into the water.
fresh water
you take water and filter it
fresh water and peppels fresh water and peppels
fresh water