Plants are constantly dying.Leaves turning yellow,lossing chorophyll(turning transparent).Plenty of algae too?

Question:My plants are amazon swordplants,Java fern and Java moss.But only the Amazon swordplants are dying. Sometimes I think its because there's too much fertilizers for the plant resulting in algae bloom, or maybe I over pruned my plants.How do I actually prune the plants and keep them nice and tidy?I always seem to do a pretty bad job and the plants looks horrible after awhile.I have a CO2 diffuser,fertilizers with occasional dosing of liquid fertilizers and trace elements.Using 2 fluoroscent lamps with reflectors.The 2 tubes has been used for quite some time.There's always little particles floating in the water,i think my filter isn't up to the task anymore as I have what I believe a pretty heavily stock of fish in a 4ft tank. 2 adult and 2 baby angelfish,2 striped raphael catfish,4 bronze cory,4 panda cory,4 oto,2 wood shrimp,a few yamato,20 rummy nose and 20 cardinal tetras.

Answers:
Sounds like your plants do not have enough sunlight. Do they get any real sunlight during the day? Fertilizer will feed algae. If you have particles floating in your water, your filter is not doing the job. If you have that many fish in your tank, the waste particles may be too much for the filter. Also the temperature of your tank will effect your plants. I had swordplants in my tank for years with no problems, but they did get sunlight for a couple of hours each day. Do you have any sucker fish to control the algae?