02-06-2012, 10:14 AM
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Originally Posted by Geomancer
Yes, it has nutrients, however the benefit is very limited. Only rooted plants will gain anything, non-rooted, stem, and floating plants get nothing from it as they get their nutrients directly from the water. It's good for heavy root feeders though (like swords & crypts), while the nutrients last (just like a garden though, you have to replenish nutrients eventually).
For those plants you have to use a liquid fertilizer, and since you have to add the liquid fertilizer... rooted plants get benefit from it too. Quite a few people have been quite successful with plain gravel/sand. If you go with a plain substrate and have heavy root feeders, you can put a root tab in next to them. It's a solid block of fertilizer and lasts a couple months.
Personal choice really, just know you still need to add fertilizer for the plants that are not rooted into the substrate no mater what substrate you pick.
EDIT: Forgot to ask, is the light a screw in type like normal house lights, or is it a tube that has two metal prongs on each side?
It has 2 metal prongs. Posted via Mobile Device