The tetras and probably the ram and loaches could be beating them up. If they are stressed enough they can die.
Do you generally see males with torn up tails? Or females as well?
Recently I had a flowering pot that was outside and got knocked over by the wind and is now broken. I wanted to put this in my betta's tank as some hiding spots and some cool decorations for her. It has had soil in it, but none with fertilizer that I know of.
How can I clean this to make sure...
You can still do the betta with other calm community fish. Just make sure you have the community fish in there first. Also make sure they look very different from the betta so he or she hopefully doesn't attack them. There is a possibility that it wont work because the betta is too aggressive...
They can get colors earlier I'm sure. If they have the right conditions such as frequent water changes, ample food and space, they may grow faster. It is usually their size that determines when color shows up.
Probably within the next week. It gets easier once you get to know your fish and what size they are when they drop. I have a female who will drop in 5 or 6 days, I'm pretty pumped. :)
I have done this before just with a water change, I looked to make sure and saved a few fry when I did this.
I would try this. After you are done siphoning let the water rest for 30 seconds so it stand still and any fish can get their bearings.
I think maybe a white cloud minnow could work. Only two or three. I have never had them before but I think they are cold water. It is hard to stock a tank that size. If you do get a heater you could put in a female betta. I wouldn't do a male because they get much larger. I have a female betta...
I would put him in another tank immediately if you can. I am not sure how they spread, I have never had them nor know what to do. But I would at least get him out.