View Full Version : Actinic Bulb

10-15-2010, 05:31 PM
I am planning on setting up a 33g tank and am going to be putting plants into it. Now, the light that I am going to be getting comes with a 10,000K bulb and one actinic bulb. I ordered a 6,7k bulb for the fixture, but my question is, can i keep the actinic bulb in there for the blue effect in the tank, or should I take it out and use the 6,7K bulb?


10-15-2010, 07:15 PM
I took mine out for the 6700K bulb, left the 10K but the actinic doesnt do much for plant growth at all that I have experienced even using Co2.

10-15-2010, 07:21 PM
agreed, actinic bulbs are good for growing saltwater corals and freshwater algae. The 6700k will give you the best plant growth while the 10000k will give you good color.

10-15-2010, 07:33 PM
This is a 67K and 10K mix

man was that tank a mess, glad I gutted it.

10-15-2010, 10:04 PM
Ok thanks. I didn't think the actinic bulb would do anything to the tank, but I thought I would ask just in case. So I will leave the 10,000K bulb in and then I will replace the actinic bulb with the 6,700 K bulb that I ordered.

WhiteDevil, your plants are growing great under that light. I hope that I can grow good plants under mine.

10-15-2010, 10:09 PM
No use for plants and can actually benefit red algaes such as bba.In short term use it will be ok till you can replace it.

10-15-2010, 11:05 PM
t5ho's and diy Co2. every now and then i toss some potassium sulfate powder in to kick the growth a bit.