QUOTE(presario316 @ Jun 29 2008, 11:52 PM)
The looks of the fishes are ok....I think nothing wrong with them. If it's really sick, it'll CLAMP fins. What you see in those pics are not CLAMP fins symptoms. THey are just not FLARING.
I dont recommend a 100% change of water because it'll mean a 100% in all water parameters(temperature, pH, water hardness etc). Unless you can actually have water supply of about the same parameters as in your fish jar.
I keep my bettas in Nescafe Gold jars. When i do water change, only remove 70%, then replace with new water. Well, of cos there are other guys outthere who would revoke this. It's all up to you. Each of us hass different method

gd luck
Long time no chat nor see u in here liao, presario.
Anyway, thanks for the clarification.
QUOTE(kenji_britney @ Jun 30 2008, 10:45 AM)
hmm i do 100% change, i take the fresh water from my small 'pond'. so i think that should be quite a natural environment for them.
hmm....usually i do a 80% water change to my other betta.
I only do once a 100% if i too many days didnt do water changes.