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RE: RO against Seradest (+ anybody from Belgium ?)





> -----Original Message-----
> From:	David A. Youngker [SMTP:nestor10@mindspring.com]
> 
> Well, this seems like a good time to test *my* connection...
> 
	seems OK ;)[JMS]  

> > (I use seradest water to dilute my tap water, rams were
> > acclimated with my very hard tapped water (hardness
> > about 20) for one week, then I diluted it to a hardness
> > of 12 and added peat filtration. Then one week after, I
> > diluted again to a hardness of 7. This last move, they
> > dislike and 40% of them died (those are german rams,
> > not the shitty far-east quality)).
> > Anybody got an idea ?...
> 
> Two questions:
> 1. How quickly are these concentration shifts taking place? I realize this
> is most likely _not_ the case, but your posting leaves the impression that
> it's rather quick.
> 
	One afternoon (about 100 liters tanks (1m*0.5, 30cm height), about
35l water changed) [JMS]  

> 2. What's happening in your tank as far as _alkalinity and pH_ ? Again,
> your
> letter implies that your focus seems more on hardness. If you're making
> 40-50% reductions in general hardness you're also affecting the KH,
> obviously, but its effects aren't quite as linear as hardness. Plus, peat
> filtration is considerably more active against KH than GH, so there could
> be
> a lot more going on than simply softening the water...
> 
	pH was about 7.2
	first dilution, about 6.8
	peat filtration gradually down to 6.6
	second dilution to about 6.5
	(this with precise pH paper)
	I think my test is total hardness, I shall also check for carbonated
hardness as I have found a test in the lab ;)

	I started in another tank peat filtration at the same time without
any problem for the cacatouides living therein (but didn't dilute further
than 12 up to now).[JMS]  

> -Y-
> 
> David A. Youngker
> 


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