So when the plant dies, I try to figure out what might have caused it. (Keep in mind I've yet to test the water (ack). I get a thermometer to see what the tank temp is at. 64F...that should be good for plants right? I go online and start reading like mad, find out the tank is a bit too cold (even the goldfish like low to mid 70's better), and that I might need more light.
So I pickup a 200w fluval heater (it has its own built in thermometer) using a bunch of coupons and deals to get it below a certain price point, and double the amount of lighting in the tank to a wow producing 40 watts (with no reflectors).
I slowly raise the temp 2 degree's a day, until it reaches 74F. The goldfish immediately become more active and seem extremely pleased.
After installing the lighting however, I notice almost no difference in light penetration from the tank...money basically down the drain.
So for anyone with a seaclear tank...throw that crappy enclosure out the window...it's a massive waste of money.
I add two new swords, and two anacharis bundles, hoping that the changes in temp and lighting will help. I also move the cat stand back far enough so Render can't easily put his paws on the top of the tank. It works great. Now he can watch the fish, without actually disturbing them.
Right around this point, I find some articles on wpg and see I should be shooting for 2-3 wpg. I do some web searching, and find ahsupply AND THIS FORUM. WOOHOO!