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 Wow if thats a 420 those are some monster discus! They are beautiful! The frequent waterchanges is probably the 'saving grace' if I might put it that way, since you dont change pH and dont dechlorinate first etc... Im a little surprised actually if your doing 30% at a time. But your fish look great so it must be working. 86 is a nice temp... and yeah your koi must poop a lot at that temp lol, I can see why they would have grown fast!
 The leopoldi is beautiful! I gotta ask though... no sand for the rays?
 
 Thanks for sharing! Cheers,
 
 Chris
 
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				No more tanks    - Laying off the ReefCrack for awhile! 
Cheers, 
Chris
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