Originally Posted by FlyingFish47
Hi guys, I have a question on this subject (sorry OP, but they seem to be reading this thread lately)
I too have been cycling for around 2 weeks, have never had an ammonia spike but had high N02 & No3, which then went down and have stayed down... so could my tank be cycled?
Also I bought one of those filter start bacteria things but have not used it yet as I was unsure.... can it hurt the bacteria if they are actually there already?
(I am fishless cycling, first it was with shrimp, now with fish food)
Bacterial supplement's in my view don't hurt anything (maybe render early nitrate reading's), but I don't see any evidence that they work well for everyone.
Hard to say how much bacterial colony has developed when using fish food's to feed it as opposed to liquid ammonia.
Shrimp method is difficult as well if your trying to guess as to how many fishes to start with.
Is why It is best in my view to begin with two or three fish and stock slowly with week to ten day's between new fishes.
Ammonia method produces a large bacterial colony (constant dosing ammonia), and some report that they have stocked their tank's fully within day's of performing the large water change at the tail end to lower the nitrate's.
Plant's can help keep toxic ammonia from harming fishes but one or two plant's does not cut it.
When your Nitrites,ammonia, read zero for three or four consecutive day's,and nitrate reading is there,then you'll be ready to perform 50 % water change and add some fishies(slowly ,few at a time).
Many are those who wait patiently for the tank to mature, and then add too many fish,overfeed the fish, and young bacterial colony is overwhelmed temporarily which in turn produces elevated ammonia,nitrites,= sick ,dead,fish.
Does not hurt anything,ever,to test water and perform water changes regularly.
Only time water changes are maybe stressful for fish,,is when they are far and few between and sudden change in enviornment(even for the better),,comes as a shock to osmoregulatory function's as they try to adapt to sudden change in pH,GH.
In addition,,the rate that bacterial colony develop's is influenced by variables such as temp,(bacteria develop better at tropical temp's as opposed to cooler temp's)
pH (bacterial colony prefer ph above 7.0 and develop more slowly at lower pH)