water changes

  • We are currently upgrading MFK. thanks! -neo
my jags breed like rabbits, as did my JD, 90 percent water change every week, fry in, whither eggs, wigglers or free swimmers. 90% or fin level water changes, city tap water dosed before before water in
fry never died off or any die, now not having them sucked up the vacuum tube another matter.
 
How well fry etc survive, or not, can be based on numerous factors. The one that tiger15 brought up was chlorine vs chloramine, and then of course we have residual levels at user end of each of those substances. Without at least some of that data whether ones fry survive or not is a moot point.
 
all things being = a large water change should not make a dif. yes?
 
Yes and no - especially when it comes to changing ones water in a safe manner. That is precisely why I generally never give specific advice unless the OP gives specifics about their system, such as the age of it and it's biological maturity, the amount of overall filtration, their tap water, their dechlorinator, amounts used, amount of water changed, etc. Too many factors to generalize a lot of these questions.

What might be completely safe in your system, with small fry, could wipe out the next persons batch of newly born fry. Especially when one is talking about fin level water changes.
 
Damm RD I love it, you are correct IMHO, there is no absolute . except that there is no absolute. :)
all things being = only happens in a lab.
 
Just agreeing with the posts.

I used to use a bucket, but that switched once I had more than 2 tanks. And all my WC were in the 50-75% range and in every case, disconnected the plugs, drained the tank, added the dechlorinator directly to the tank water, then added the tap water (matching the temp), then reconnected the power. All in all with a hose and a drain nearby, it was a trivial amount of time.

Never had a problem with that on my fish.

Naturally, certain fish or conditions might require more care, but in general, this would work fine.
 
esoxlucius said:
Just out of interest, i suppose the holy grail of fish keeping is to never have to do water changes i.e a drip fed system where small amounts of clean water are continually fed in whilst the exact same amount is bled out. Do any of you guys run systems like this? Would there be any downside to running a system like this?
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I just got mine up and running today. I used a filterguys 3 stage chlorine filter, a mixing valve hooked up via y-type fittings off my washing machine faucets and a 40 gallon per day regulator on the drip line. New water drips into the tank and my sump is drilled with an overflow bulkhead with a garden hose fitting which runs to a floor drain in my basement.
 
When I start filling I put about as much conditioner to match the water that I've taken out (usually around 50%) and then put the other 50% (I dose enough for the whole tank) on the side of the aquarium walls, so that the water comes into contact with it as the aquarium fills up gradually.
 
Sounds like monkeybikes got it well sussed. When water change time comes for this guy he lights up a big fat cigar and puts his feet up. Respect. Just a thought though, if water is fed in a drip drip fashion as opposed to a big glug of it going in with buckets or hoses, would there be an argument to say that the chlorine would dissipate out naturally and very quickly drip style because it's such a tiny amount going in? Just a thought.
 
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