Brownish Algaes, How To Get Green Ones? Options

[teckheng]

Qns : does green algae produce foul smell ?

[32Bit_Fish]

Qns : does green algae produce foul smell ?

No smell/foul odor that I am aware of.

[teckheng]

so after so many reply.... it's the Volt important or the Kelvin ?

[pacificbetta]

I used bulb interchangably with fluorescetn tubes, PC etc in this post.

"Watt" is the amount of electircity consumed. Electrical efficiency depends on type/age of bulb, but other things being equal, a higher wattage implies more light. You have to make sure your ballast us rated to drive the right wattage. Too low, you may not be able to fire up the bulb. Too high, you are taking a risk by overdriving the bulb and possibly shortening the lifespan of the bulb.

"Voltage" is non-negotiable. It is either 220ac (230ac) or 110ac or dc if you are using the latest LED technology. Generally when buying light fixtures from the shops you need not worry about it, since the shop already got the ballast setting tight. They better do! Bulbs are used interchangable between 110 and 220 light fixtures since it is the ballast that handle the "volt".

"Kelvin" is the color of the bulb. Higher kelvin lights are "bluer" in color, and lower K light are more yellowish. Sunlight is around 7k? (dun quite remember, been a while since I last kept fishes!) 10k gives a crips white light which I reaslly like. Goldfish, I think looks nice under yellowish light, even maybe suplemented by some red light.

Do note that intenisty of fluorescent lights drop with time. MH bulbs K rating drifts (spectrum shifts depend on type/brand of bulb). For goldfish, the way I see, if you use MH, the purpose is to "suntan" your darlings, not sure if the UV baking will help, I am a newB in goldfish!