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Re: [APD] Estimative Index

At 02:51 PM 1/13/2005 +0000, you wrote:
>This may be a stupid question, but I have to ask anyways.
>I have a 29 gallon tank, on which I use the Estimative Index (Barr Method) 
>for my nutrient dosing.  The problem is this:  ever since I've started using 
>the EI, I have not been able to keep dwarf cichlids (apistos specifically) 
>alive for very long.  I have tried everything I can think of -- the water 
>parameters should be ideal.  pH 6.7, very soft water, heavily planted ....  
>I've tried drip-acclimating them, floating bags, acclimating with the 
>lighting off; everything I can think of.
>Could the higher nitrate levels sustained by me using the EI be stressing 
>the fish out?  I had one pair that only lasted 2 days, and another single 
>male that only lasted a week.  I feed live foods (microworms and viniger 
>eels) and my catfish and shrimp are all fine; my aspidoras and cherry shrimp 
>both breed with consistency.  Could I have gotten some bad apistos?  I know 
>the LFS keeps them in local tap water (very very very hard, pH 8.2+) and 
>maybe going from soft water to hard water back to soft water was what did 
>them in.  I want to get this worked out, because I am very fond of apistos 
>and rams, and would like to get some of either kind.
>Does anybody have any suggestions?

Microworms and vinegar eels? That's not much of a diet for Apistos. Can't
you get some white worms or at least grindals? This is the only thing
that stands out to me.

High nitrates won't hurt fish. I have a tank with some killies, some quite
rare expoesnuve and delicate (A. georgae) that surviced a month of 200ppm
NO3 (oops, slipped a decimal point) and there was no sign of trouble with
the fish or plants.

Are they wild fish or captive bred? Wild fish in soft water may get a bout
of mycobacteria which is grossly inhibited by hard water (See Scheel, ROTOW).


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