QUOTE(goldfries @ Oct 26 2015, 08:36 AM)
How many % of the water do you change? (What's your tank size btw?)
Anyway yes, correct that it's good to leave water as it is for a while for chlorine to be removed. Need not be a tank, just a large pail will do. Pump not necessary though, just leave it overnight will work.
Changing tank water ever day / 2 days isn't good either, water changing can stress the fish and it also the chemical properties keep going through changes.
Just change 10% - 20% water every week or so would be fine, that also depends on what's the stock like in your tank.
I change quite a lot of water like 30-50% of water in every 1-2 days. My tanks sizes are small, ranging between 11 litres and 18 litres max each tank. Many of those is like 3 compartments in a 2 feet size tank.
Ya, can just store the water in a large pail. Pump is recommended, if you do not have one, best is leave it still for 2 days before using it. Air pump quickens the process in removing the harmful chemicals in the water.
I guess the frequency of changing water depends on individuals, there is no hard and fast rule. Stick to the one that is best for your fish. I change water like 50% every 2 days and they are very healthy, they love fresh water. This link to your next para, it also depends on the number of livestock in your tank. Generally my tank won’t be too overcrowded, at most 4 pairs of fishes in a tank (main breeding tank). Frequent change in the fry tank, like 60% to 70% every 2 days promotes the growth of the fry. I keep my fry in plastic tanks only, approximately 7 litres of water only.
Changing just 10-20% is really too little and my fish would already long died due to high ammonia, cos I feed really a lot!! Till the fish stomach is bulging everyday, they grow very fast that way (then only they can showcase of what they have got).
If you feed your fish moderately like once every 2 days, then I suppose your way could work.
Anyways, it is all depending on yourself and what do you want for your fish. I’ve been doing this for 2 years running, I’m producing good fishes. So I guess I my advise is considered okay.
I often get some questions like, how come the fry doesn’t grow much even after 1.5-2 months. So I ask the questions, did you feed them like mad? Did you do frequent water changes? If no to the both, then your fish can’t really grow healthily and bit of nutrition malfunction and won’t be able to grow into those really beautiful guppies (show guppies) even if their genes are great. I hope that explains. I’m happy to share my guppies knowledge so long if you guys ask me.
This post has been edited by tehoice: Oct 26 2015, 10:36 AM