Golden pothos can be a beneficial addition to your fish tank, primarily as a natural way to help filter and purify the water. They are known to absorb nitrates, which reduces the need for frequent water changes. The plant's roots, when submerged, draw nutrients from the water, helping to control algae growth and maintain a healthier environment for fish.

Here's how to incorporate golden pothos into your aquarium:

Cutting and Submerging:
Take a stem cutting from a healthy pothos plant, ensuring it has a node (where roots will sprout). Remove the lowest leaf and submerge the cutting, allowing the roots to grow into the water.

Hanging Method:
Attach a pothos cutting to the back of the aquarium using suction cups or a hanging planter, so the roots dangle into the water.

Placement:
While the leaves can be kept out of the water (or partially submerged), the roots need to be submerged for the plant to absorb nutrients.
Pothos plants can be placed along the sides, back, or even the front of the aquarium.
Consider the plant's growth habit and how it might impact other tank elements when choosing a location.

Light and Care:
Pothos plants thrive in bright, indirect light, but can tolerate low light conditions as well.

They are relatively low-maintenance and can be trimmed as needed to control their size.

Benefits:
Nitrate Reduction: Pothos absorbs nitrates, a byproduct of fish waste, which helps keep the water cleaner.
Algae Control: By consuming nitrates, pothos can help limit algae growth.
Aesthetic Appeal: Pothos adds a natural, decorative element to the aquarium.

Important Considerations:
Toxicity: Pothos is toxic to cats and dogs if ingested, but it's generally considered safe for fish if kept within the aquarium parameters.

Competition: In heavily planted tanks, pothos might compete with other plants for nutrients.

Filtration: While pothos is helpful, it's not a substitute for a proper filter