Not sure about aggression, but I personally think a 20L isn't big enough for that many geckos. I used to keep a breeding pair in a 20L, I think 3 is pushing it I wouldn't cram 4 in that tank.

Sorry I couldn't answer your other question, though. Good luck with them and hopefully someone else will jump in and help.
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Danne
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1.0 '07 BRB (Monroe)
1.0 '08 BRB 66% het Anery (Ace)
1.0 '08 Pastel BP (Sebastian)
1.0 Dumbo rats (Wilbur)
0.4 cats (Cupcake, Smokey, Thelma & Emelia)
1.2 family members who can't wait until I move "the zoo" into my own place!
1.0 supportive boyfriend
1.0 '08 neutered grey sugar glider (Acco)
0.1 '08 whiteface sugar glider (Malina)


Email = dshoback@eden.rutgers.edu

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