I don't have any heat mats. I'm just going to use the bulbs and the lid is a hinged I'd bought from the Hermit Crab Patch with one half having an acrylic piece also from the Hermit Crab Patch and the other half taped down with pieces of plastic.
Post by Sach-Crabministrator on Dec 10, 2014 8:34:59 GMT -5
I'd say aim the lamp at an angle toward the tank itself (a few inches away) or the acrylic side of the lid to be safe and you'll still wanna flip the acrylic regularly to prevent warping. Then you just wanna watch how it does; what size tank is it? I have used 60w & even 75w, but they were on big tanks.
≈19 clypeatus, 4 perlatus & 8 compressus in 4 tanks
Make sure you are home to watch initially because acrylic will melt (personal experience!) and it could potentially give off deadly fumes depending on how bad it was.
I use mats with a low wattage bulb because I am concerned about using bulbs alone; they always tend to burn out when you are away and your tank could get chilled depending on the temp in your house.
As for what is too hot, you have to be at home to monitor the temp when you experiment with the different bulbs because I would think too hot would potentially be more dangerous than too cold; over heated crabs have nowhere to go.
I know that I have a 60 watt night bulb that can raise the temp 5+ degrees in minutes in a 40 gallon; so I only use it for very short periods when I am watching the crabs.
Post by Sach-Crabministrator on Dec 30, 2014 3:12:01 GMT -5
You're right dgarrou that overall heat is more dangerous to crabs than cold; at least initially.
I have the advantage that I have been a stay-at-home mom & (now) business owner since I started crabbing and so I was able to spend the first year stalking my tanks & learning all the little tips & quirks of what I call "The Dance" of maintaining crabitats when you don't have the benefit of expensive high-tech stuff like rheostats & actual tank lids (ha ha) but as a result my tanks all pretty much run like clockwork all day & night whether I am here to mess with them or not. Obviously people who work & leave their house for several hours a day will have a harder time watching what works for their tanks with less time to watch but you'll learn the dance of what works for your tank eventually For bulbs, I actually prefer lamps with dimmer switches. Not only does this allow you to adjust the heat but also the light.
≈19 clypeatus, 4 perlatus & 8 compressus in 4 tanks
I have a UVB light as my light source but a black ceramic clamp lamp as part of my heating. The ceramic bulb puts out heat but no light. I also have a couple of heat mats.
c. variabilis x4: Ginger, Mango, Fudge and Caramel Ginger has been with me since November 2011. Mango, since August 2013 Fudge and Caramel were adopted in about November 2015 from a local crabber along with Ziggy who was the mother of my first lot of babies but died about a week later. + about a 13 baby crabs as at 26 Dec 2016 (DOH 4th December)
My bulb does heat and light in my big tank...Meggs and Stripe and the big boy were all out basking when I turned the light off this morning (35 degrees) tonight it's 28 so they can cope with the light. The bulb helps with the cold in winter, my heat mats also do the rest of the heating.
4/1 - Stained crab is a boy! 1/5 - Got a 'sick crab' pack from Nat. I'm very impressed, it's a large pack so will feed all crabs! 30/6 - My new hygros have arrived! The big tank is 29degrees/81humidity. The little tank has the same temperature but 86humidity.
Post by cutepetgroomer on Jan 11, 2015 23:01:11 GMT -5
I have a 60 watt day bulb and a 15 watt night bulb I also have a 4 watt uth that is on the side. I plan on unplugging the uth when the weather heats up (I'm in far west Texas , in an apartment with an swamp cooler (the kind that only works to a certain humidity level ) not sure about my heating though .. I plan on making my next night bulb slightly higher wattage
kitty: Not much activity in my tank. One morning I got up and it looked like a tornado went through it. Water bowls tumbled, food dishes upside down. Fixed it all up and have been waiting eversince. ! Nothing. DARN !!
Mar 22, 2015 22:44:09 GMT -5
kitty: Just checking in. Monday March 22 10:40 Pm Chicago time.
Mar 22, 2015 22:41:40 GMT -5
crablet: Winter? We haven't had summer yet!
Jan 27, 2015 10:44:02 GMT -5
Sach-Crabministrator: Answers to the most common questions can be found in our quick links box on the left side of each page!
Jan 13, 2015 14:57:39 GMT -5
Sach-Crabministrator: I've now shut down the Facebook group so I can focus on the forum!!
Jan 1, 2015 6:40:35 GMT -5
Deleted: I sent in a Adoption Template but don't see it on the board... ?
Oct 30, 2014 12:40:18 GMT -5
Deleted: Where do the hermmies put their eggs for hatching??
Oct 4, 2014 15:54:23 GMT -5
Curlz: ... anyone flying to Germany?? With compessus or variabilis in baggage?
Sept 24, 2014 4:30:49 GMT -5
Deleted: Hey Hey HEY! Calling all newly signed up members... Be sure to post an introduction on the forum. Sure would like to meet & greet you! Hope you find the info, support & friendship you desire with your fellow Crabbers
Sept 20, 2014 9:46:08 GMT -5