Gunk
Aquarium Advice Regular
Hi everyone. Besides trying to get my new tank going I'm helping my dad cycle his. Everything has been going perfectly for his tanks fishless cycle. Right now he adds a little ammonia everyday and tonight time he has 0 amm 2 nitrites(was at or above 5 the previous 2 nights) and 120 nitrates(was 5 then 20 then 60 the past 3 nights). so I figure his tank is almost done cycling. So to the question. We should do a 80%-90% or whatever it takes to get nitrates around 20 before adding fish correct? And my most concerning question is we are using a python type thing to do water changes so the new 80% water will be coming straight out of the tap and then add water conditioner immediately when its filled back up. Is this ok or does the water need to be conditioned before adding to the tank. Will the few minutes its in there unconditioned kill all the good stuff? Please help if u can and thanks!