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Re: Ca additions and Undergravel filter

Michael D Nielsen asked...

>What would be a good form for Ca additions in a PMDD regime?  Where is
>it likely I could find this?

Calcium chloride, CaCl2 at a gardenning center at $0.25/lb.
Dissolves in one minute.

and Jim Capelle wrote...

>I addressing this question to two list for a good reason.  I am going to
>set up a 110 gal tank this weekend.  I am putting a lot of Rainbowfish
>(for show not breeding) and hopefully to plant it also.  The question is
>that I am going to set up an undergravel filter using reverse flow.  I
>have gone to the APD archives and read all I could and now I am getting
>ready.  Are there any comments on this matter?  Any thoughts on
>planting.  Years ago (20+) I was into undergravel filters and plants and
>it worked great until I took a plant out and it was rooted into the
>plate.  Now I want to try something different.

Try no filtration or a powerhead with a sponge filter. I haven't
found filtration to be necessary.

Dave Whittaker
ac554 at FreeNet_Carleton.ca