I have a 20 G QT
tank running with a sponge filter and HOB
filter (carbon, filter pad, no biowheel though I could add one). I cycled it for a month with a chunk of LR
, and it did go through the cycle (I tested every few days and did water changes. It was a pampered rock.) After my nitrites were 0 for a week, added two percs (or false percs. See thread about black clownfish.
) Anyway, my ammonia is running about .25 and I'm getting unreadable results from my nitrite test (Salifert test ordered and on the way). I've been changing 15% every/every other day. Fish appear fine.
My question is this--the water changes seem to stress the fish out--they get all bottle-rockety in the tank for about an hour afterwards and seem quite anxious. I know .25 ammonia isn't too bad, but I want to keep their water as optimal as possible. On the other hand (wait, that's on the third hand), if they're stressing out, that's not so good either. So what should I be using as a threshold for a water change?
tank with 29-gallon sump
2x Maxijet powerheads
Mag drive 9 return
Coralife 4x65 Lunar Aqualight
120 lbs rock from liverocks.com
1 peppermint shrimp and 1 fire shrimp (very shy)
2 black Ocellaris, Squish and Smudge
3 chromis, too identical to name as yet, in QT
29-gallon with two goldies, Carrot and Orangehead