my p.h. is about 7.5 I have a 55 gal. 6 fish, look in my sig for info on fish, I have a fluval 304, tank has been running for a few weeks, only one has been on the bottom (3" female ryukin) only some have small white lumps on just pectoral and caudel fins nonee on body but the dojo has them on every one of his fins, eating fine , I feed shrimp pellets and slow sinking spirulinamaxima granules , poop doesn't look too well on female 2" fantail who has been breeding with my rancu and moor , is it easily curable? please help!