>Hmm. With all the web searches and book reading I have done it appears that
>there is no one "perfect" substrate for use. Most of the information I came
>across was the result of trial and error.
Vermiculite is the nearest to the perfect sterile (mould/fungus
inhibiting) substrate for use with arachnids. It may be perfect for us
keepers but some arachnids 'hate' the stuff and refuse to even stand
on it.....others tolerate it, and a few actively seem to prefer it,
once webbed up. My H. lividum (Cobalt blue tarantula) loved it, and
she had a wonderful set of tunnels all round her tank. You never knew
where she would pop out!
> At the moment I am giving the peat/vermiculite a chance. I do fear in the end
>I will have to use just vermiculite, though I have seen white mold colonize
>just plain vermiculite on several occasions.
That would almost certainly be due to contamination from left over
food (cricket parts or dead uneaten cricket or other foodstuff. I have
yet (in over 15 years of keeping arachnids) to see vermiculite in a
well maintained tank succumb to mould or fungus infection. However I
have seen this happen with peat, even after it was sterilised in a
> My cobalt has yet to come down from the top, though I think it is stress from
>being moved and bothered. I made a small hole in the substrate to see if it
>will further build it into a burrow. If not I will have to construct an
> All the responces to my post have been of great help and I thank you. Im
>looking forward to raising a beautiful tarantula.
Well here's a link to my own care sheet for this species, from
first-hand experience, as I used to own one of these splendid
Here's a link to an article that I penned on the subject of substrates
for use with arachnids.
Hope these help?
BTS & ATS Member
Arachnophiliac/The Tarantula's Burrow - http://arachnophiliac.com/burrow/home.htm