Glad to hear he is doing better!! Finish him out at least 8-10 days to make sure any bacteria is killed off in the salt- he'll thank you in the long run :)
Originally Posted by callistra
Yeah that's the aquarium salt you need :)
At one 50% a week and one 100% a month there would be - a lot - of ammonia build up. This water change routine would be good for a cycled (not uncycled tank). My guy is in an unfiltered 5g. He poops very little. The bottom is bare and the poop is scooped up immediately after he goes and by day 6 there has been as much as .5ppm ammonia in his tank. 50% weekly would not be sufficient at all. Sorry. If you want to change so very little then I suggest investing in a good drops test kit and testing daily past the 4 day mark and any time you start to see ammonia you know you need to do at least a partial change. Then you will start to see how often it really needs to be changed.
You have to be aware that a lot of water conditioners turn ammonia into ammonium which is safe for the fish, but register as ammonia.
The 1 50% per week and the 1 100% per month (weekly siphoning if there are no live plants, bi-weekly if there are) is sufficient for a 5 gallon.
But I do have to agree that by the 4th day test to see.. up to .25ppm is considered safe for them.
With the live plants, the 50% per week would be sufficient, as you don't want to be making more then that otherwise your plants will be affected.
Everyone's experience and opinions differ, and not all are wrong. I base my opinions off of 17+ yrs experience in fish keeping, tons of research on bettas, wet vets and people who have been doing betta care for decades recommendations. Even with all that you will want to make sure it's right for you, as not every tank will be exactly the same and register the same- it varies depending upon water source and even water conditioner, and whether or not there are live plants.