If you plan on having a filtered tank, make sure you know about the nitrogen cycle
. Even with a filter, you still need to do weekly water changes. A petco employee told me if you have a filter you never change the water
speaking of petco - rule number 1 - NEVER trust anything a petshop employee tells you!
I'm sure somewhere out there is en employee that actually knows about fish care but 99.9% of what they will tell you is pure bull.
I'm not sure about tanks under 5G but for 5g and over, if you are going with a filter, you should pick up the API master test kit so you can keep an eye on ammonia, nitrIte and nitrAte levels while the bacteria do their thing. You will need some levels of ammonia in order for the bacteria but you don't want the levels to get to high or it will become deadly for the betta. Ditto for NitrIte and NitrAte.
If you can find betta revive (not to be confused with bettafix) that had a low dosage of malachite green and methleyne blue:
- Prevents & Controls Protozoan Diseases
- Prevents & Controls Bacterial Diseases
- Prevents & Controls Fungal Diseases
- Helps Regenerate Damaged Fins & Tail
If you can get some of the other mentioned meds, it would be better but betta revive would be better then nothing if it came down to it. When I lived in Alaska, I had to order all meds online and this was one of the few that petco actually had.
Also Furan-2 might be better then the Maracyn's and easier to find. I beleive it fights both gram neg and gram positive bacteria infections which is what maracyn 1 and 2 will do if combined. I have heard a few times that they are taking maracyn off the shelves - something to do with idiots using it to get high >.< I have only been able to get them via online shopping but I can get furan-2 and triple sulfa at a local shop.