I am new to keeping fish. I got my first 10 gallon late November and fishless cycled. Now I have just one betta. I use a gravel siphon and take about 25% of the water out every week. Am I supposed to just vacuum on top of the gravel, or kind of jab it in the gravel to get debris loose? Does cleaning all the gravel disrupt the bacteria? I don't know whether to do the whole bottom, or just half..
Secondly, maybe a month or two ago I completely changed my filter media - I'm thinking this was a bad idea because since then I've had ammonia readings. Is my tank cycling over again? Also, I've noticed I have planaria (I think?), and my betta has developed tail rot. I haven't had very good luck. I started feeding him less because of the planaria (from 6 pellets + bloodworms to 3). I used melafix, but I think I'm going to buy maracyn also. What am I doing wrong? Please help!
Secondly, maybe a month or two ago I completely changed my filter media - I'm thinking this was a bad idea because since then I've had ammonia readings. Is my tank cycling over again? Also, I've noticed I have planaria (I think?), and my betta has developed tail rot. I haven't had very good luck. I started feeding him less because of the planaria (from 6 pellets + bloodworms to 3). I used melafix, but I think I'm going to buy maracyn also. What am I doing wrong? Please help!