04-06-2012, 04:18 PM
| || |
Yes, my experience with an enriched substrate has been disappointing to say the least. I bought Flourite for my 70g and the same plant species in there as I have in other tanks with plain sand and other plain gravel, and same light overhead, are growing much the same. Liquid fertilizer regularly is needed in all of the tanks regardless.
And Geo is correct on the sand and gravel mixing. I suggest a single substrate, either all sand or all gravel, and of the same type. I now use Quikrete Play Sand from Home Depot, Lowe's, etc. Very inexpensive, takes lots of rinsing, but a nice substrate when done. Looks nice, plants are doing well, but most of all the substrate fish love it.
Light should be fine, and agree, replace every 12 months.