I guess hybrids or mutations are both possible - sometimes the gold/orange
of the rear half of the body of M. boesmani transfers to hybrids in a
reduced area.
Java Fern Microsorium pteropus is native to the area they come from - but
you don't tell us what sort of effect (good or bad ).
Bruce Hansen
ANGFA
email: bhansen at ozemail.com.au
Don't miss the ANGFA web pages at -
http://www.ozemail.com.au/~fisher/angfa.htm
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From: HoopsBaby at AOL.COM
Also why do Java Ferns seem to hve such an affect on these fishes?