dont feel bad bluey i had two clownfish originally that did great up until dec.. i started my tank in early sept... then i had a bout with ick......killed one clown the other recovered.......i moved and had to take apart everything and redo.. everything went well then i got 2 new clowns....did great for about 6 weeks then the two new ones died... then my goby....then my original clown.....ick was back........took out all fish and put in hospital tank and medicated for well 5 days but kept the fish in tank for a month... my basslett started shwoing signs of dying....labored breathing not eating... well i went and got a new bigger filter (have a 20 gal) now i have a whisper power filter 25gal to 40 gal pumping 200 gph...added some essential elements and stresszyme 24 hrs later basslett is back at 110% eating like a horse.........its been 30 days now and tank is as clean and clear as i ever saw....it was stress from moving and redoing the tank when i put in my live rock.... still havent replaced the clowns just waiting til i get some more money. my nitrates were too high but i used amquel, removes ammonia, nitrates, phosphates and chlroine...it helped alot. all parameters a right where they are supposed to...so dont give up.. give it a couple weeks and try again... the less you do to the tank the better it will be... trust me... i had a freshwater tank (10gal) cleaned it once a month( just cleaned gravel) used regular tap water ( had an aretesian well) didnt add anything and lost one fish in 3 yrs..... i had angels that were no bigger than a dime when i started,,, by the time i started they were about 8 inches....heater broke.. and tank craked i sold them.... the angels went for $50.00 each needless to say i tripled the expense i spent when i bought them over the 3 yrs... and i didnt do a thing i just fed them and cleaned to grvel once a month... never added anything..