FROGSPAWN:
I have 5 frogspawns in my tank, when i started out i only had 2, but 1 of the 5 had a mysterious melted spot on it like it just melted or something burned it, so i wiggled my finger over it and brown stringy stuff came out, All tank tests are normal, but i dont understand, i used joes juice to kill an aptasia today but it claims its reef safe
and it was nowhere aroudn where the frogspawn is, and the only other thing i can think of is if some saltcreep fell off the tope and landed on it and just sat there, hmm well i cant take ap icture since you cant see it anymore, but imwondering as to what could have happened, if anyone has an idea thatd b gr8 
NITRATES:
my second question is, i want to lower my nitrates, so since i dont have a sump, refugium, or the money, i was wondering, could i make a little rectangular box out of acrylic, then drill a million small holes in it, and add some nitrate reducing plant ( sry forget the name of it) and just hang it at the top of my tank? cuz i kno it wouldnt look pretty but it would help all my critters in my tank and if its what it takes... u kno.....
o Nitrates wer 20 and there going up, i do a weekly water change and i take out 30% of the tanks water, but nuthin is helping, im gonna try and feed every other day, since its only my clown right now, BUT I AM ADDING MY FLAME ANGEL IN 2 DAYS ITL B 8 WEEKS ON THURSDAY
o 8 weeks in quarantine
I have 5 frogspawns in my tank, when i started out i only had 2, but 1 of the 5 had a mysterious melted spot on it like it just melted or something burned it, so i wiggled my finger over it and brown stringy stuff came out, All tank tests are normal, but i dont understand, i used joes juice to kill an aptasia today but it claims its reef safe

NITRATES:
my second question is, i want to lower my nitrates, so since i dont have a sump, refugium, or the money, i was wondering, could i make a little rectangular box out of acrylic, then drill a million small holes in it, and add some nitrate reducing plant ( sry forget the name of it) and just hang it at the top of my tank? cuz i kno it wouldnt look pretty but it would help all my critters in my tank and if its what it takes... u kno.....
o Nitrates wer 20 and there going up, i do a weekly water change and i take out 30% of the tanks water, but nuthin is helping, im gonna try and feed every other day, since its only my clown right now, BUT I AM ADDING MY FLAME ANGEL IN 2 DAYS ITL B 8 WEEKS ON THURSDAY