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 Hi Jerry, 
Dither fish sure worked this time : )   I 
have a couple of Oto cats in most of my planted tanks (but none in Rio 
Mamore's.)  They are my algae busters but I suppose they could count as 
dither.  My Rio Mamore female was not really bitchy but uncooperative 
(guarding grindal worms and chasing the male away.)   
Tomoko 
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