Fishes / Behaviour
Lighting does more than let you see your fish. It drives photosynthesis for any live plants, influences fish colouration and natural behaviour, and, handled poorly, is one of the biggest contributors
Lighting does more than let you see your fish. It drives photosynthesis for any live plants, influences fish colouration and natural behaviour, and, handled poorly, is one of the biggest contributors to unwanted algae growth in a home aquarium.
LED fixtures use a fraction of the electricity that older fluorescent tubes or metal halide lamps consume for a comparable brightness, which matters in India where electricity costs and running an aquarium light for eight to ten hours daily add up over a year. LEDs also run considerably cooler, reducing unwanted heat input into the tank during already warm Indian summers, and typically last many years longer than fluorescent tubes before needing replacement.
For a basic community fish tank without live plants, a simple white or full spectrum LED strip is sufficient, chosen mainly for how it makes your fish's colours look. For a planted tank, look for a fixture rated in the range plant growers describe as medium to high output, and check the specific wattage or PAR rating against your tank's depth, since a light that suits a shallow tank may underpower a deeper one.
A consistent eight to ten hour lighting period, ideally on a timer rather than manual switching, gives fish a stable day and night rhythm and reduces algae by not extending light exposure inconsistently. Running lights for excessively long hours, a common early mistake, is one of the fastest routes to a persistent algae problem, regardless of how good the fixture itself is.
No LED fixture discussion is complete without repeating the most basic rule: keep the tank out of direct sunlight regardless of what artificial lighting you choose, since sunlight through a window adds an unpredictable, uncontrollable light source that overrides any careful schedule you set on your fixture.
Article content © Ravi Teja. All rights reserved.
Fishes / Habitat
The scissortail rasbora, Rasbora trilineata, gets its name from the black-and-white banded tail fin, which opens and closes in a scissoring motion as the fish swims, a genuinely visible behaviour rath
2 min read
Fishes / Behaviour
Flushing a fish, whether dead or simply unwanted, down the toilet is a habit many Indian households have inherited without questioning it, and it carries real risks that are worth understanding.
2 min read
Fishes / Getting Started
A cover might seem like an afterthought compared to filtration or lighting, but for a saltwater tank it does real, unglamorous work: cutting evaporation, which matters a great deal given how salinity
2 min read
