Question about switch to coir/sand substrate

[awcohen]

Hi -- noob here.  Been monitoring site for a couple of months.  First posting.  Maui, our Russian has been with us for several months.  We've been using repti-bark as the substrate in his 40 gallon Rubbermaid container without any apparent problems, but after reading up on what is considered the best substrate, yesterday we switched to a coir (Eco-Earth and play sand mixture).  Maui seems happy; he was very active yesterday after the switch.  Here's my question:  he is now covered with substrate and there is a lot at the bottom of his water bowl, which he dragged in with him.  Is this is a problem?  Are there any concerns we should have about it getting in his food, eyes, etc?  Does this mean that perhaps the substrate is too moist?  Any advice would be appreciated.

[Joe H]

Hi

Thats normal.

[awcohen]

Thanks Joe.  One other quick followup question -- the area under the basking lamp (100 watt UVB bulb) is now registering much cooler (high 80s to low 90s) than it was with the Repti-Bark (high 90s).  I assume that this is because the coir/sand substrate is moist while the bark was dry.  Any issues there?  Or is the area a few inches above the surface where Maui and his shell will get the heat/light presumably the right temp . . .

[Joe H]

Thanks Joe.  One other quick followup question -- the area under the basking lamp (100 watt UVB bulb) is now registering much cooler (high 80s to low 90s) than it was with the Repti-Bark (high 90s).  I assume that this is because the coir/sand substrate is moist while the bark was dry.  Any issues there?  Or is the area a few inches above the surface where Maui and his shell will get the heat/light presumably the right temp . . .

Those temps are fine. I like to measure the shell temps with a temp gun.

[awcohen]

Yep, that's what I'm using.  Thanks again.  Appreciate the peace of mind.