Get a light lah, kesian your betta. Check my siggy

Java moss you can ask weijie or derik79k

Too bad, I totally dislike plakats, don't find them fancy at all. I love halfmoons btw

Guess what? I love HM a lot but fin rot was something I cannot handle at all. Tried salt treatment and it didn't work at all, in the end gave up keeping betta. Plus, they need higher water temperature too.

I'm keeping guppies now, they are also very pretty

Depends on your taste on what "pretty" is.

IMHO most pet shops have halfmoon but 99% of them are not nice at all. The really nice halfmoon I got was from Betta Nature in KL, I got it when they got fresh stock so I could choose which I want. Quality is quite good. You can refer to pic:

It's cruel to confine any fish in such a small aquarium. Get the biggest you can afford

..

This post has been edited by -kytz-: Sep 13 2013, 11:16 AM

How long have you been keeping the betta in your bigger tank?

Is your filter mature already aka have enough beneficial bacteria to break down ammonia & nitrites?

I'm suspecting ammonia poisoning..

OMG dude, betta lives in tropical weather of Thailand which means warm temperatures. Preferably 26C to 30C

You should know this basic fact before getting a betta!

This post has been edited by -kytz-: Sep 15 2013, 01:57 PM

There's no need for lights.

While bettas may be hardy, still it is not humane to subject them to various unhealthy living conditions such as:

1) Unfiltered aquarium
2) Super small aquarium. It's like forcing a cat/dog to live in a cage. They need big space to live too.
3) Unsuitable temperatures
4) Poor water quality
5) Ammonia poisoning <--- I think you better read a lot about this.

http://faq.thekrib.com/begin-cycling.html
http://freshaquarium.about.com/cs/biologic...trogencycle.htm

Please read!!

Regarding your fish:

1) How big is your tank?
2) Do you have a filter? Is your filter properly cycled?
3) Any signs of diseases?

Make sure your filter is properly CYCLED first. This is the most BASIC and most important step to know before rearing any living creature in an aquarium:

http://faq.thekrib.com/begin-cycling.html
http://freshaquarium.about.com/cs/biologic...trogencycle.htm

Any amounts of ammonia is still dangerous to fish. Even though bettas are quite hardy fish, that does not mean you can subject them to various irresponsible and ignorant acts that will harm the fish in the long term.

And mind you, ammonia is also released directly from the fish itself. The smaller the tank you have, the more frequent you have to water change due to the accumulated levels of ammonia in the water.

New inspiration and motivation for me to rekindle my passion for fish keeping

No filter, No CO2, No Ferts setup: