New T5 bulb require different fixture? - Page 2 - Tropical Fish Keeping - Aquarium fish care and resources
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post #11 of 12 Old 12-14-2010, 02:15 PM
Its possible he got the tank second hand and it came with a t5 fixture. Or its also possible that he bought the fixture separate in the store. I think kits are not as popular as they once were since i see a lot more t5 fixtures on sale nowadays and less tanks with the plastic hood and t8 fixtures. More often now, i see the tanks with the all glass canopy and customers need to buy lights separate.
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post #12 of 12 Old 12-14-2010, 05:00 PM
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Originally Posted by mnangler View Post
You all answered my question.... also, the weird flashing stopped after I took apart the light and re-secured a few of the wire nuts internally. The physical dimensions of the new bulb are exactly the same as the previous bulb and fit perfectly into the fixture. Looks like I'm good to go, although I really think I'm going to need a double fixture with two lights for these plants to thrive.
I tried T5 over my 75 gallon tank for plants and the lighting just was not strong enough for much to survive. I have had great luck with HOT5, however. Wisteria, bacopa, Amazon swords... all thrive in the 75 gallon tank with the HOT5.
While spectrum does affect plant growth, the wattage is just as important to watch. A standard T5 fixture just is not enough wattage for the depth of a 75 gallon tank. I have a T5 fixture over my 30 gallon salamander tank and can grow almost any plant I want in there... It sounds as if you simply need more wattage over your tank.

Dawn Moneyhan
Aquatics Specialist/Nutritionist
Juneau, WI
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