I took your advice and haven't added chemicals for several days* - since Feb. 2 and have done only one water change in that time.....
Readings as of yesterday...
Ammonia -8.0 (rose 4 pts since last post)

pH - 6.4 (dropped .4 since last post)

Nitrites - <.25 and dropping (were on the rise several days ago)

Nitrates - 0 (have remained steady for several weeks.

Water temp 78 degrees 8)
Water has been cloudy white for at least a month.
Fish appear to be fine. No rapid breathing, healthy appetite, playing and chasing - Male sword trying to mate with pregnant female! (guess he's not too bright)
To recap:
15 gal, Whisper 30 filter, Ebo-Jaeger 75 w heater.
Stock: 3 emerald Corydoras, 3 Green Swordtails (2 female - one is pregnant, 1 male), 4 sword fry 4 weeks old
I am at a COMPLETE LOSS and am tempted to start over completely from scratch.
