Join Date: Jul 2010
Location: Outside Philadelphia, PA
When it comes to ferts, your best solution is to purchase dry ferts, and mix your own stock solutions. It's really not too difficult, and saves a heap of money over the liquid ferts.
As for high tech verses low tech or medium tech, this is a personal choice. It comes down to what you want out of the system. As you can see from all the post on the forum, both work well, but go about things a bit differently.
Typical water changes, if your using the EI method of dosing is about 50% a week. However, there are plenty of other people that don't use that method, and have great tanks. Again, what do you want out of the system?
The higher tech systems tend to give more plant growth, but you'll end up doing a lot more pruning and maint on the tank.