Hi guys,was juz reading up on lots of old treads and got alot more knowledge abt goldfish keeping but also at the same time some doubts on my keeping methods..Do u guys remove ya goldfish from ya main tank during water change then put them back after awhile or juz change the water with them inside???

Personal preference.If you need to change 100% do the former.
I change 80% so I do the latter.

if only a small cleaning up of dirt, then just be more careful, no need to get them out. but for delicated fish, best to isolate them from the powerful suction.

if a 80%-full change, of course take out.

i sucked the eye out

same same ... hahahahahaha

Actually I would much prefer to change 100% each time but lazy to net the fish out.
So I usually siphon the water all the way to the min depth that can still contain the fish,which is abt 20% of the tank water.So change only 80%.

But would like to advise begineers reading this that you can do that only if your stocking level is on the low side and you know that the nitrate levels are kept under control.

That's strange, I put all my fish in a container when I change water, get all the water out from the tank and then put in new water. The fish only gets out 15 minutes later.

I thought everyone is doing that.

I do a total water change with a spare tank.100% change every 3 days.The tank are disinfected with KMno4 and sponge filter wash before top up and ready to accept fishes from another tank scheduled for a next tank water change the very next day.

regards

goldrush

Incidentally,still on topic of water changes,can those bros who rent ponds outside tell me if they are allowed to do 100% water change and if so what sort of water introduction is made after the change.If a pond is rather big in capacity I would imagine the time to top up and time taken to equate the optimal water parameter after the change.???????Kindly comment.Thxs in advance

regards

goldrush

Yo Goldrush,

It is almost impossible to equate the water parameters as the source is from nature.At most you can only equate the temperature. That is why it is much more riskier keeping them in rented ponds and all my cases occur at the ponds.Water quality varies and fluctuates especially when you have wet and dry spells.

There are 2 methods to do 100% change.If you have only 1 pond,gather your fishes in a pail or tub then drain off the pond water and then refill.
Some rent more than one so they transfer the fishes to the empty pond,change the water in the existing pond,refill it,them come back next week and repeat the same process.

Filling up the pond is not a hassle though,the pumps are of high capacity and a 6'x8' can be filled in abt 5 minutes.

I do not know what you mean by "allowed to do 100% change",but at our place (96 Sg Tengah) because water is not recycled (ie drained off pond water is not re-used) the landlord always keeps an eye on water wastage and will tell you off if you waste water.The current dry spell is a major headache for him,his reservoir (in the form of a well) is drying up and he has to ensure all his 'tenants' has ample water supply.

Regards
cpiw

Thxs for your reply appreciate your prompt response.
So you can change water only once a week or can you change any time if you visit the pond more often in a week.If sickness is prevalent how do you disinfect and treat your fish especially if water may come from the same soure of contaminants even after water changes.

Thanks for the enlightening guys! Anyway I've always been doing ard 50% change once a week for my 4 ranchus in my 3footer,seems like its not enough ya??

i do 95% change for my single demekin in my 100L 2ft

change water?? tats a annual chore for me....

50% where got enough. 95-100% weekly and 2 of my blue tubs 3-4 days full change. The rest of the 100L discus tanks, every day twice change. wah piang ... water is cheap !