Watts per gallon is only a rough estimate. The true meausre of light intensity is Lumen per Square Foot. If you are running power compact lights the wattage and lumen output should be suffecient to sustain the frogspawn... I just think their are other issues with the tank.
For lion fish to grow, be healthy and happy, meaty foods (often live) need to be feed several times a day. This is fine in larger tanks that can handle the extra Bio-Load, but any uneaten foods will become a major problem in a nano-reef. And there will be uneaten foods. Lion-fish remind me of the freshwater oscar, they eat anything they can get in their mouth, and often leave half of what ever it is they where eating untouched... a deffinite problem in small tanks.
The Koran angel will grow suprisingly fast, but will not stay healthy on a high-protien diet. They need green foods like differnent types of algae, but will eventually (when they reach their potential 8"-10" mark) eat most types of LPS, SPS, and soft corals, as well as whipping out any sponge population that might be in your tank.
The two clowns will eventually start fighting. When clowns are young the are not sexually mature (usually takes about a year), and may tolerate differnt speceices. But, when they get sexually mature they will become territorial and will not tolerate one anothers presence in a 15gal tank. Espcially because tomato and clarki's clowns are way up their on the clown-agressiveness scale.
Finally, any nano tank that houses delicate corals needs to have an extremly small bio-load. LPS, anemones, and most other corals will not handle high ammonia, nitrites, or nitrates, which is the perisistant problem in overstocked tanks. To combat this if you want to keep what you have, MAKE SURE you have a protein skimmer, and buy one that says it will work for a 55 or 75 (like the CPR backpack skimmer), and preform religous (in other words do not skip) weekly 25% water changes. Also pack the tank with LR and at least a 2"-3" sandbed. Good luck
Originally Posted by saltn00b
the LFS tend to tell people things they want to hear just to make the sale, so beware.
P.S. not all of them, just the ones with out souls, akin to your used car salesman. There are some who make the effort... not to blow my own horn or anything.