I have a 15w flouresent lighting for my fish tank. Could i change the colour form violet to white-yellow when i change the bulbs?Aquarium Light Colours?Yes you can, and your fish will probably be happier as its a more natural light. Cheers MaxAquarium Light Colours?im sure you could. like if you replaced a regular lightbulb in your lamp with a coloured one nothing awful happened. :)Aquarium Light Colours?yes you can. get with your local home improvement store to find the right size for your aquarium. or if they dont have it, im sure a local pet fish store will.Yes, changing the lamp will change the colour.
If you have plants, then get a lamp with a 5,000 - 7,00K colour temp. Thats around the colour of natural sunlight. It may appear slighty blue compared to normal room lights.
If you dont have live plants, then a normal 'warm white' lamp of 3,000 - 4,000 will be fine.
Ian