Okay Bobby, let me be the first to tell you that peat/perlite mix is inferior to a balanced organically based soil medium (and technically speaking it is a soiless mix, Opa. Peat is a component, not a soil).
Eventually you will begin to develop some strains of micorrhizal fungii in your "soiless" mix, and it will become soil, but why would you want to put your plants at a disadvantage? Miccorhizae help develop roots, but some strains even take the place of roots early on, helping with air, nutrient, or water uptake in younger plants. You can keep fertility in the soil with chemical fertilizers, but now you've gone back to a soiless mix because you killed the micorhizae with the salts those fertilizers are based on (ask the Carthaginians what salt does to long term soil fertility. Or the Dustbowl Okies.) You have now also limited nutrients to what you provide and you are the arbiter of uptake for micronutrients and other trace elements; plants can't decide how much, they just take whatever is there and I answer SO many questions where people are burning plants with nitrogen or getting deformations due to oversupplying trace elements.
I did not fertilize my tomatoes once last year. No one on the block had bigger plants or fruit, and when the weather got hot and dry and others plants strarted to stress and look crappy (and stop setting fruit), mine kept going strong. I worked my own compost (Cost=sweat) into the soil when I planted and topdressed twice with the same (combatting weeds at the same time) I just hauled the plants out last weekend with the neighbor (chemical fertilizer/rototiller and three times the plants I had with about as many tomatoes as I had) looking over the fence and he was stunned at the root masses; while he hauled his out single handed with no effort, I had to use both hands and really strain, even used the shovel for the 'Matt's Wild Cherry'.
The way you think of hydroponics is exactly how we feel about chemical fertilization. Organic grows bigger healthier plants, period. I work in the nursery trade and have access to all the fetilizer I could carry; slow release temperature controlled, micronutrients, you name it. I have grown that way before; for years actually. Had pretty good plants and fruit, but always struggled during hot, dry weather, and that organic composting stuff seemed like too much work...And those assays on organic fertilizers are so low...(Silly comparison as the chemical stuff is really only available until it washes away, and as there are no miccorhizae to help uptake, that happens as soon as you water)
Try it. Just try it for a season. I have studied and done the reasearch; look yourself. You are getting better food, healthier soil and there really isn't more work because as you work the soil, it gets better every year. Just keeps getting better. The results I got this year (first year in a new garden) are nothing; I'm going to start blowing minds in my neighborhood next year. Meanwhile I'm not polluting our water supply with nitrates, (they're ALWAYS water-soluable, so they wash out of the soil as soon as you water) the plants are healthier (I didn't spray those mater's once) so I'm not killing anything with the 'cides and the quality of my food is better (natural ingredients make natural food). AND it's cheaper (to an old swamp Yankee like me, that's good stuff)
Long story short; there is a better way. Go organic...
The Helpful Gardener