i have a 2month old 29g marine tank. with 1 tang, 2 clowns, 2 damsels, 1 small sabea anemonea, and 3 hermit crabs. my nh4 is lethally high, my no2 is high, and my no3 is high. my ph is 7.7, i have a protein skimmer and undergravel filter with aerating power head. temp is 80f, 25w 50/50 30" bulb on for 14hrs a day. base is 1" crushed coral and 3 limestone rocks. thats it. ive been to every fish store and they all give me a bottle of tlc live bacteria to put in. ive done that for 5 weeks and nothing has changed. can anyone please help? ive only lost one fish so far a mandarin goby, but i want to prevent anymore! so please help!