First planted tank, need help pls.
this is the first time i have had a planted tank, its about 2ft long, i guess around 50-60gallon.
I have already got substrate, fertilizer and CO2 tab from a local store. I have 4x18watts Tubes for lighting. Also have a few plants (dont know the names since i am a total noob when it comes to aquariums). I just did the setup 3days ago, i also have installed a water filter with 700lt/hr capacity, a water heater set to 26degree Celsius. Currently i havnt put any fishes in it, as i was told not to, so as to give the plants enough time to get adjusted and stuff.
Now i just wanted you opinions as to if everything seem ok?
I also havea problem, each time i change the water, within a few minutes the water again goes all dark and gloomy, the first 2days i changed the complete water twice a day, but again it becomes all gloomy. Any suggestions on what could be wrong?