angelfish parasite?

[fishman793]

so i have or i guess i should say had 3 freshwater angelfish. one died yesterday. i suspect that they have some kind of parasite. it seems as if it died of starvation and the others are unhealthy thin. not a sleek, angelfish thin. no matter how much i feed them they keep getting thinner. their feces are white or clearish also. i recently got some new plants about a week and a half ago. can parasites come in on plants? my water quality is completely fine. the tank is a 30 gallon tall and i do a 12-14 gallon water change every week. i have heard that you should feed garlic to the fish if they have parasites. but i will not do that until i have heard back from someone.
please help!!!

 

[bob mccoy]

if u can afford it look at seachem.com and they have some awsome meds. i order from them for all my angels. and i have 8 breeding pair and you can emagin how many young ones i have. and by the way it is a internal parasite eating the food in there stomach so treat as soon as posible.pm me if i can help