So I have three black male mollies and one male swordtail (I know, it shouldve been 3 females and one male but I was in a rush) and they have been fine for the past 4 weeks. My 20g tank just finished cycling the end of august.
However, the past few days two of the mollies have been in the top corner not swimming or anything, unless I feed them then they swim. (I attached pics)
Everything seems to be fine, but i also noticed two weeks ago my gravel and decorations is covered in brown that wont come off (brown algae?).
Also, I did a 25% water change last week and the week before that. Usually my pH is 7.6ish but I tested yesterday and got:
pH: 6.6
Ammonia:0
Nitrates:20-40
Temp:78-80
But kH is 0
I dont know what could be going on...they usually are bolting around the tank. Also how much should I feed them? I feed them once or twice a day and they eat two or three pinches really quick and its like they are always hungry.
Thanks
P.S. I have two live amazon swords in there that have brown spotting. I assume its the brown algae or not enough light so I ordered a dual t5 ho light for 48w instead of 15w that I have now. Hopefully that wont cause more brown algae.
However, the past few days two of the mollies have been in the top corner not swimming or anything, unless I feed them then they swim. (I attached pics)
Everything seems to be fine, but i also noticed two weeks ago my gravel and decorations is covered in brown that wont come off (brown algae?).
Also, I did a 25% water change last week and the week before that. Usually my pH is 7.6ish but I tested yesterday and got:
pH: 6.6
Ammonia:0
Nitrates:20-40
Temp:78-80
But kH is 0
I dont know what could be going on...they usually are bolting around the tank. Also how much should I feed them? I feed them once or twice a day and they eat two or three pinches really quick and its like they are always hungry.
Thanks
P.S. I have two live amazon swords in there that have brown spotting. I assume its the brown algae or not enough light so I ordered a dual t5 ho light for 48w instead of 15w that I have now. Hopefully that wont cause more brown algae.