08-04-2012, 01:12 PM
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Originally Posted by osti
Thanks Byron My tank is a 150 tall which is 48x24x30 tall. The plants I have are 4 jungle vals, 3 micro swords, 2 bunches of anacharis, 2 cyptocoryne wendtii, 2 cyptocoyne balansae, 1 undulatus, 3 java ferns, and 3 amazon swords. I am using a liquid fert from petco but can't recall the name. I'm using root tabs for the rooted plants. I have ordered the seachem flourish comprehensive and the flourish tabs and will be starting to use them as soon as I get it. The only plants that seem to be doing well are the jungle vals. I have discus in this tank along with 15 black neons 20 neons 2 clown loaches, I do a 20% water change every week. Amonia is 0, nitrates 15ppm. The water supply for water changes is hard water.
I would go with even less light considering these plants and fish. A two-tube T8 fixture taking 48-inch tubes will be fine. I have this over my 90g which is the same area but 6 inches shorter, and also over my 115g which is 5 feet long and 2 feet deep. The photos under "Aquariums" below my name on the left illustrate the tanks. I have no trouble growing those plants, and have to limit the duration to no more than 8 hours daily to avoid algae.
This less intense light (though it is still bright to me) will also suite the fish better. And some floating plants like Water Sprite.
The problem with T5 lighting is the brightness. There are NO (normal output) tubes, but these are not easily available depending where you live, and since they are roughly equivalent to T8 but for more cost, I can surmise why. The HO are much more intense light; I tried two 48-inch T5 HO over my 90g and then over the 115g for a week but it was far too much light. I took it back for a dual T8 fixture.
Tubes can be bought in hardware-type stores for a few dollars. The "daylight" types by GE, Sylvania, Phillips having a 6500K work fine; I use them.