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i pulled my 2 tubes out , but couldnt find anything specific about the lighting apart from them the brand and the wattage , they are both 20 watts . One is a purple colour and one is white My fish tank is 610mm x 310mm x 410mm. its inhabitants are 1 x moonlight gourami which is fed once a day -...

in my 80l i have a green hairy sort of algae growoing on some of my plants and even a bit of brown dirty looking algae, is this caused by to much light i have them on for about 10 hours a day and now i keep them on for 8. i have about 2watt per gallon ratio. or could maybe to much plant food...

hey just a quick question what does pearling mean?

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it is a 75 litre tank which is about 16 gallons and i have 2 x 17w lights for it. i did a test last night . i think it is the heater damn, i left in on all ngiht with no lights on set at 22 degress , i checked temp this morning and it was 27 :angry:

and one more quick question, i dont know if its my heater playing up, but i have it set on the minimum temp and it seems to boost the water temprature rapidly up from about 21 degrees to 27 degrees . im not sure if it could be the lights heating the water up tho?

how do i find the tube type?

Hey i have just set up my tropical freshwater tank, after its has been sitting in the garage for 3 years. i have bought a new light, in the hope it will make my plants grow better. and it has come with 2 globes , 1 which is a purple colour and one which is more a white - yellow . i was wondering...