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Fluorescent tubes for aquarium use come in two commonly used sizes, T5 and T8, which refers to the diameter of the tube. The number refers to how many eighths of an inch in the tubes diameter, so a T5 is 5/8ths of an inch and a T8 is 8/8ths of an inch - or just 1 inch! Beyond the sizes T5 come...

Hi Chris they look pretty trick, the only two thing I can see is the new led lamp comes in an adapter that makes it look quite bulky, for anything like reflectors or lamp covers. I dont know what you will be mouting them in but its just a thought, pin orientation to get them sitting right on a...

Andy these do look interesting especially the first ones you mention, just an observation on both the first needs a voltage transformer as well as splitters for multiple applications and the second will need a transformer to operate as well to reduce to 110v, just incase you committ to buy and...

Chris the bulb in the picture is a 100w halogen bulb which over a palnted tank would certainly be a lot of light. I notice you are replacing a failed 150w halide which is an incredible amount of light unless you are losing a lot by the nature of how it is mouted. The lamp will light the tank for...

Argos do great digital timers cat no.982/2911 for £14.99. I have 6 off on 2 off socket bars and they are really easy to programme and being digital are really accurate. •Automatically controls connected appliances from normal mains socket. Here is the spec, regards Colin. •Up to 128...

Hi Tommy yes that is correct therfor it can only be taken as a general guide because it was based on florescent lamps where we now have so many variables in lighting types, metal halide, T5, T8, Led, to name a few. The length in comparison to the tank, the height, with or without reflectors, the...

Hi Tommy just to try and help, working on WPG you have 56w of light and 32 gallons of water which gives you 1.75w per gallon which enough to get you stared for sure with a tank depth of 36cm and an overall height for the lamps of 50cm. A lot will depend on dosing and flow as usual with planted...

Hi I have one fitted in the middle of my 4 tube Arcadia Luminare and it s great at giving that shimmering effect on the water. I have it on for the last hour after the Luminare has gone out and it really gives the tank a nice look, but that is about all it is good for. As George says he had two...

Hi I use white vinegar and paper towel, pour a little vinegar on a couple of squares of kitchen paper and it easily cleans the deposits or build up if any water from the tank has splashed or tarnished the reflectors, I think its the chemical deposits from EI. Then buff the lamps and reflectors...

You want to rotate them 1/4 turn but first there may be caps over the ends of the tubes to splashproof them. If you look at the tube and you cannot see the metal capping end of the tube you will have to unscrew the protectors and slide them down the tube both ends. Then hold the tube between...

Hi my Osaka is 5" from the water when it is just hidden by the silver trim strip, but at the rear is in the lower position which helps. If you cannot access the mounting position the lights are fixed to the overframe by 4mm screwed rod which you can buy for pennies from B@Q. Making up a couple...