Brad I also have a spring fed clear lake of 8 acres here in Texas. Although it is a bit more of a challenge, you can raise large fish in it and it is fished on a regular basis with good results. Fertilization is difficult due to the flow through water from the spring so I have taken other alternatives. It was an existing lake with too many fish in it so about 4 years ago I started an aggresive removal program of all bass under 14 inches. I added two feeders along with stocking coppernose and shiners. I added structure to the lake in 4-8 feet of water. I also removed all crappie caught and there were too many large catfish so we removed some of those. We have gradually gone from a top end bass of 2lbs (with the majority under one pound and very skinny) to a healthy, fishable pond. We have caught some 7-8 lb bass and have a good population of 4-5 lb bass. Clear water, in my part of the country, can still provide good fishing and a good fishery. Good luck
