Thanks so much for your help! i'm very glad to have found this forum to get answers quickly.
The guppy (Dorothy) is doing fine. He acts perfectly today.



I looked at him very closely today, and I can't see anything wrong with his appearance. He looks healthy. But i didn't feed them last night and they all were starving this a.m.
I didn't do a water change today, because I realized I didn't have the treated water ready. I do treat the tap water with conditioner 24 hrs b4 changing, and i just forgot to refill my jug.
I will get the test kit. Of course the
LPS told me i didn't have to test the water, just do my weekly water changes and it would be fine. She told me if i wanted to, i could take a water sample to her and she'd test it.
Cycling: A couple of weeks after I got the guppies, the water got all cloudy, and so I called the pet store, and she said it was probably cycling then. It was cloudy for a few days, and then has been clear ever since. What do you think? If you think it was a cycle, do I still need to do the 50% water changes?
I really don't want to take Cory back to the store. I'm going to work on getting a bigger tank. That way, I can get him a buddy or two.
I just have to figure out where i'm going to put it.......... (some place the cats/dogs/child can't get to it)
One other ?- I read somewhere that the cory's like to eat a piece of cucumber, but to boil it first. Should I boil it in distilled water? treated tap? or it doesn't matter.
Thanks again.
p.s. that cyanobacterium article is the original one i read. it doesn't say about only being in SWT? but everything fits.

except, i didn't think it even look like algae, so i didn't get an algaecide. It looked like green cellophane. across the rocks and on the filter. which brings me to another question. I know i'm not supposed to get rid of the biofilter, but wouldn't the bacteria be in it now too?