Why is my ammonia rising again?

[michael.qian]

I took out the 16X white clouds yesterday morning as it has been sold.

Tested my ammonia this morning and it was almost 0ppm.

Now planning to slowly add 1X male betta, 4-5 corys and maybe a small group of siamese algae eaters (only when neccessary maybe won't add them at all).

[michael.qian]

Ammonia was clearly 0ppm this morning, so I went and bought a red male siamese fighter, shouldn't hurt to add just one fish, especially after I took away 16.

Will add corys after 2 or 3 weeks time.

The fighter seems to have settled in quickly, my god it's a great looking fish with long flowing fins and tail and a graceful swimmer.

Weird about my clown loaches though, havn't been very active for the last week or so, before that they come out for a few hours from late afternoon but now they seems to be more active in the morning, when the tank is dark, not really interested in the food I'm feeding in the late afternoon like they use to be, hope they are alright.