I never acclimate fish between tanks. I've never had an issue at all doing it. I only drip acclimate new fish.
It all depends how you keep your tanks and whether you let the water chemistry change over time. I normally have it as a target to never let any parameters change over time via large water changes so all tanks read pretty much the same as my tap and the same as the first day they were ever setup. Age doesn't make a difference. All Gh, Kh, Ph and TDS are normally identical. Only my temps differ but if it's no more than a couple of degrees it makes no difference to the fish.
For the same reason I can do as large water changes as I want without causing any stress whatsoever. I have no nitrate build up so can't comment on that making a difference. I actually dose nitrates for the plants as they don't seem to get enough with large water changes.
It all depends how you keep your tanks and whether you let the water chemistry change over time. I normally have it as a target to never let any parameters change over time via large water changes so all tanks read pretty much the same as my tap and the same as the first day they were ever setup. Age doesn't make a difference. All Gh, Kh, Ph and TDS are normally identical. Only my temps differ but if it's no more than a couple of degrees it makes no difference to the fish.
For the same reason I can do as large water changes as I want without causing any stress whatsoever. I have no nitrate build up so can't comment on that making a difference. I actually dose nitrates for the plants as they don't seem to get enough with large water changes.
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