100% water change good or bad?

  • We are currently upgrading MFK. thanks! -neo
Status
Not open for further replies.
jcardona1;3242696; said:
nooo, the beneficial bacteria is attached to your filter media, not in the water column. if your theory was correct, we could keep tanks w/o filtration right? because the good bacteria is floating around in your water...NOPE thats not the case. if the water is properly treated, you wont kill your bacteria
Click to expand...


uhhhh beg to differ

the bacteria you mention do not live in clean sterile water

they require food (nitrogenous waste)

you do 100% water change....you remove 100% of their food


although you may not kill your fish with 100% water change once in awhile it is not recommended....you can sure cause a 'mini cycle' in your tank which stresses all inhabitants
 
if your tank has "chunks" in it you definetly need to vac. what size tank are you running, and how many/size fish?

as to water changes. i hardly ever do anything less that 50%, usually closer to 75% at a time without having probloms with it.
 
TwistedPenguin;3242865; said:
Nutcase, just because YOU think a 100% water change is perfectly safe does NOT mean it is. You don't know exactly what his water is and the chemistry. You can't tell someone on the 'net to do something and assure them it's safe when you don't know.
Click to expand...

Please read my words more carefully... I have repeatedly said that provided we take proper precautions... a 100% water change is perfectly safe. That is not an opinion, it is a fact. His particular situation will be accounted for by taking the precautions mentioned... If the OP does not understand his specific precautions he is welcome to ask for further guidance...

But lying to him and saying a 100% water change is not safe is just...well, lying!

trebor69;3242949; said:
uhhhh beg to differ
the bacteria you mention do not live in clean sterile water
they require food (nitrogenous waste)
you do 100% water change....you remove 100% of their food
although you may not kill your fish with 100% water change once in awhile it is not recommended....you can sure cause a 'mini cycle' in your tank which stresses all inhabitants
Click to expand...

Fish constantly produce ammonia... so the moment we finish a 100% water change ammonia is being added to the water and is being converted into nitrite...

If we were to do a constant water change for a week or two, your point may be accurate. But if the 100% water change is done over the course of a couple hours, it holds no bearing...

Water chemistry is a science… where facts matter and opinions do not…
 
I put a air filter in my tank wit good bacteria alrdy on wth good bacteria on the sponge. And my fish did fine. It was right after a cleaning of the tank too.
 
trebor69;3242949; said:
uhhhh beg to differ

the bacteria you mention do not live in clean sterile water

they require food (nitrogenous waste)

you do 100% water change....you remove 100% of their food


although you may not kill your fish with 100% water change once in awhile it is not recommended....you can sure cause a 'mini cycle' in your tank which stresses all inhabitants
Click to expand...





There are nitrifers found in substrate, as well as the filter itself. When I do a 100% change, I do NOT gravel vac, and do NOT maint my media. When I maint my media, I do not change water. It is really not that hard. This thread is longer than it takes to make a common sense decision on the matter. Read read read, then come back a year later and laugh at this thread...Good luck.
 
Lets also not forget that not all fresh water is created equal ;)
 
I can't fully comment on this but I do know that I one time did a 300% WC on a fancy goldfish tank. It Needed cleaned BAD. and the more I cleaned the worse it looked till I filled it about 3-4 times. And the fish did fine.
 
That's sort of suggestive TP... hmmm....

It would have been a lot simplier for the OP to make a "common sense" decision if he wasn't liied to from the beginning...

Forgive SOME people for sticking up for the new guy... next time I'll just let you guys lie to 'em ;)
 
Status
Not open for further replies.
MonsterFishKeepers.com
Top Bottom