On Fri, 18 Dec 2009, Seattle_Aquarist wrote:
Hi Erik, I use these bulbs from Wal-Mart: http://www.walmart.com/catalog/product.do?product_id=10448675 in my 10 gallon with 2 sockets and they work great. That is the tank where I am growing the Nymphoides sp. 'Taiwan' (see pic below). They have a spectrum of about 6700K and Wallyworld is the only place I have found them. I have had mine in operation for about a year and a half and they are still going strong.
Follow-up. I did bike past the Lynwood Wal-Mart, and found these bulbs in the aquarium/pet section. They were $5 each, which seems pricey when compared to the ~$1-2 each bulbs in the main section. But these were significantly longer and skinnier, nearly the same size as the 40-watt tubular bulbs they replaced. Much better for spreading the light around a small tank that expects incandescents. Full spectrum, as Roy says.
The only bummer was having to actually go to Wal-Mart. I've never had a shopping cart bashed as many times as today, and there was one surly checkout cashier... makes Target seem like a designer boutique.
Now maybe I'll retro-fit some old Miro-4 reflectors I used to use with 13-watt CFs, and see if we can push just a little bit more out of em. Wish I could buy that stuff in sheets...
- Erik -- Erik Olson Sent from my crusty old Linux box erik at thekrib dot com _______________________________________________ GSAS-Member mailing list GSAS-Member@thekrib.com http://lists.thekrib.com/mailman/listinfo/gsas-member