Hey all! So my two goldies, Diabolitio and Pebbles, have been acting a bit strangely lately. After the death of Zodiac due to Septicemia (which I am doing my best to treat Pebbles and Diabolitio for) they have been very listless. They don't spit gravel or swim around half as much as usual, and they normally hang out behind the filter tubing. Usually they hang out together and not solo. Any ideas? Are they bored or depressed, or maybe this is also Septicemia for them? They live in a 20 gallon long tank (as you guys know) and I tested the water and got:

Nitrate - 20 ppm
Nitrite - 0 ppm
Total Hardness - 75 ppm
Chlorine - 0 ppm
ALkalinity - 40 ppm
pH - 6.8
Ammonia - 0 ppm

Any help would be GREATLY appreciated! Thanks!

I successfully treated my shubunkin for septicemia last year.  Here's a web site on it, which states that it's NOT contagious. 

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HOWEVER, your fish may still have contracted it, or another sickness.  Check all their symptoms.  I like to use the Mardel medicine when needed and they have a very nice disease chart that comes in each package of medicine (or may be available on their web site), and they recommend treatments for various things, which I have success with when I need to use them.

Also your nitrates sound high.  I know they say you can go up to 40, but I keep mine under 10.  Even if they can tolerate 40, I think keeping it as low as possible is the best thing for the fish.

Your water is soft, but I am very fortunate to have very good quality water coming out of my tap.  These are my readings, which work well for us:

Total hardness - 150
Total alkalinity - 160
pH - 7.6

Are they really depressed when you're sleeping?  That sounds odd.

Oh good! They were just scared. My new fish act like that too, until they start to associate me with food.

fantailer: So the fish are sleeping, if you mean during the night If it's during the day, I'd take a look at the current in the tank. If they're hiding whenever you're not close, it could mean that they simply don't want to because it's tiresome to swim around against the current all the time