On Tue, 8 Sep 1998, diogenes wrote: > Well, I'm just about there --that is, setting up a 75 gallon tank for apistos > (probably nijsseni). Thanks to the Internet and advice, I'm concocting a > 3-layer substrate and using a cable heating system. > > My question is regarding the top layer...sand or gravel? 1-2mm or 2-3? Do > apistos care? Plants care, so should that be the priority? > Mike, >From what I have read and heard smaller the better. If your gravel is too big small fry...aka wrigglers can get caught in the gravel. Have heard this both from other apisto folks and experienced it. Both David Soares and the Schmettkamp book rec. sand or fine gravel. Good luck with the tank Kathy ------------------------------------------------------------------------- This is the apistogramma mailing list, apisto@majordomo.pobox.com. For instructions on how to subscribe or unsubscribe or get help, email apisto-request@majordomo.pobox.com. Search http://altavista.digital.com for "Apistogramma Mailing List Archives"!