so what about were
i used to live the water
that came out of the tap
had a PH of 7 but after 12
to 24 hrs the PH would drop
to 6 to 5.5 so were do you stand
on that one for stability thats
a big swing in ph that
That would not be gradual and regular, therefor not safe. You are changing a whole degree in at least 12 hours, that can almost qualify as a pH drop. I've never seen a fish bothered by a gradual and regular 0.5 "swing" in pH. pH swings in most of my tanks, IDK how much exactly but I am guessing between .2-.5 daily. That means a increase during the day and decrease at night. Every 12 hours it should be around .3 difference, every 24 hours pH should test the same. Its gradual and regular not sudden and only happening occasionally. Lots of my fish spawn currently I have angelfish, emperor tetras, and boesemani rainbow that spawn regularly in a community setting. I got some new blue eye rainbows a couple weeks ago and have only found one egg from them, but some discrepancies if they spawn on the bottom or above it. Some fish like the emperors I've never seen eggs from but I have found the lucky quarter inch fry that beat the odds and now swims alongside his parents. Fish may spawn in my water just fine despite all the reasons they shouldn't be. Eggs though I'm not very good with same with raising fry.
My water changes are done with my tap which is well water. I no water treatments or things like prime. I run a hose from the faucet and stick it in the tank and turn it on. Kinda match temp but anything within 5* is fine for me. I generally use cooler water. Heavy metals I could care less about. Plants serve there purpose well. Binding up heavy metals would be detrimental to the plants, especially in high tech where they are always screaming for food. Iron, cobalt, copper, zinc ect are all heavy metals and are also vital trace elements. I know trace amounts of iron are in my tap, the rest IDK. They are in my fertilizers though. It would make no sense to bind heavy metals and add them at the same time.
Like I said, what I care most about is my tap water. I know its stats and know how it will act, whats in it, what I need to add, what I don't. I know it is stable, has changed .4 in pH in 4 years. I know it is moderately hard and thus has quite a decent buffering ability making it resist swinging. The water where you use to live must of been soft with low buffering ability. All water is not equal. If I tried to use CO2 to lower my tap pH to 6.0 I would kill the fish via CO2 overdose before I hit that. Know your water and know chemistry and you can predict how it will change to what you do.
Temp is the same, gradual and regular. You really think fish in the wild lived in perfectly stable conditions where water quality and temperature never fluctuated? It changed from day to night, with water currents, with water depth, over the course of seasons, these changes are once of the triggering factors of certain fish spawning.
A single species can very greatly. IDK why people believe GBR can't do well in higher pH and hard water. Its not important what the fishes natural parameters are in the wild, unless it is a wild caught fish. What matters is in what conditions was is spawned, hatched, and raised. What fixes most all problems is buying locally bred fish. Fish bred local waters will spawn and thrive. I know not all have access to locally bred fish. But I stopped buying stock from LFS long ago. They may have lots of fish I like, but the fact is most are imported and won't breed in my water or will be difficult. Since sticking with over 90% fish from the local club even though selection is smaller/skewed, fish are cheaper, high quality, always healthy, and will generally spawn in local water.
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