What to add to my hatchlings food? - Page 2

paulus · 13-09-2011, 08:27 AM

Will have to have a little play with the set-up I was planning to do to fit that bulb chris as I'm planning on doing one table split in two to enable me to have younger hatchlings and older ones in one table and have the uv all the way across the back. But then I could hang this over the devide and they would get uv from the deviding wall out, will see what the shop has when I get there later. But then it may not work with the heat either think I'll build it and see, have all the wood so It wont cost me much apart from time.

EJ · 13-09-2011, 08:29 AM

If it is a true UVB bulb... you can't use a dimmer. They are very sensitive to the electric current. With any variation... they shut down. They are very similar to a flourescent bulb in operation.

If you can vary the current on the bulb you have... it is not a UVB bulb... unless I missed some new technology in the last couple of months.

UVB bulbs that screw into a socket are Self Ballasted Mercury Vapor Lamps... as far as I know.

Quote:

Originally Posted by paulus

The bulb chris suggested is a combined heat and UVB bulb, well I think it is from looking at the link he posted so I thought this would replace the uv bulb and the heat bulb I currently have in place controlled by a dimming stat. But I could have got it wrong and talking a right load of old rubbish

paulus · 13-09-2011, 08:34 AM

Think I may have confused things, at the moment I have a uv bulb in a screw fit fitting straight to the mains and a separate heat bulb controlled by a dimming stat, the one chris was suggesting was a combined one that from what I now understand does away completely with the heat lamp and dimming stat.

EJ · 13-09-2011, 08:39 AM

Your set up is better because you can control the heat. With a UVB/Mercury Vapor lamp you can't control the heat except by raising an lowering the lamp. Go with the tube an a heat lamp or ceramic emmitter or heat mat.

Quote:

Originally Posted by paulus

Think I may have confused things, at the moment I have a uv bulb in a screw fit fitting straight to the mains and a separate heat bulb controlled by a dimming stat, the one chris was suggesting was a combined one that from what I now understand does away completely with the heat lamp and dimming stat.

Ozric Jonathan · 13-09-2011, 11:02 AM

Quote:

Originally Posted by paulus

Can I use this with a dimming stat? Or would I need a normal thermostat with this? Or do you use it straight on full time?

Your uvb tube does not provide any heat and is not to be used with a thermostat. If using a uvb tube you need to provide heat separately such as a halogen lamp or ceramic heat emitter.

EJ is in a very tiny minority in thinking that hatchlings do not need a 10 or 12 tube at least. There is no evidence of any possible excess of uvb causing harm.

Ozric Jonathan · 13-09-2011, 11:11 AM

The word tube here is crucial. If its a tube it does not generate a Significant amount of heat and cannot be used with a thermostat.

If its a heat and uvb bulb then it is sold at so many watts not at a % of uvb.
Combined heat and uvb bulbs must not be connected to thermostats.

Sorry Paulus if we are swamping you. Please can you double check exactly what product you plan to buy and we can be definite.

paulus · 13-09-2011, 12:56 PM

Hi guys, the only confusion I had was how I would control the temp with the bulb chris linked me to, I currently run a UVB screw fit tube and a separate heat bulb run by a dimming stat. I can't afford the combined bulb at the moment so will probably get a higher UVB tube as I can at the shop later for the mean time.

The problem arose because the UVB bulb I have is only a 5% UVB so I gather it is too low

Appreciate all your advise and have taken it on board

EJ · 13-09-2011, 04:17 PM

Wrong on 2 counts. Please explain what is the required UVB for a tortoise.

Too much UVB has been implicated in causing eye damage.

Quote:

Originally Posted by Ozric Jonathan

Your uvb tube does not provide any heat and is not to be used with a thermostat. If using a uvb tube you need to provide heat separately such as a halogen lamp or ceramic heat emitter.

EJ is in a very tiny minority in thinking that hatchlings do not need a 10 or 12 tube at least. There is no evidence of any possible excess of uvb causing harm.

anol03 · 13-09-2011, 07:02 PM

Well...
I guess that you already have read the info on http://www.uvguide.co.uk.
"Some reptiles are described as "sun-worshippers" including uromastyx, bearded dragons, chuckwallas, and many species of tortoise. In the wild, these spend many hours a day exposed to hot sunshine and high UVB levels, in places such as the Mediterranean, Arizona and the Australian outback where peak readings of 350 - 450uW/cm² are commonplace for two or three hours a day, around noon, in the summertime."

They have alot of graphs and info on the page for example one 5.0 24" flourescent tube without reflector gives aprox 100uW/cm² at 2" distans from the tube with reflector the uW/cm² almost doubles, but 2" is pretty close and ypou still only get aprox 200uW/cm² not that much compared to nature 350-450...

Br
Anders

EJ · 13-09-2011, 07:14 PM

Long before the intennet... Check out the writings of Dr. Gary Furguson.

You ever see one of those animals basking? Eyes always closed.

Regardless... could one of you control freaks answer the question at hand just once... How much UVB is actually required. I ask this because one (I'm sure more) states that they NEED... this implies that the requirement is known. I know it's not.

It's a basic question.

No. More is not better.

Another regardless... I suggested the 10.0 tube from the beginning.

Quote:

Originally Posted by anol03

Well...
I guess that you already have read the info on http://www.uvguide.co.uk.
"Some reptiles are described as "sun-worshippers" including uromastyx, bearded dragons, chuckwallas, and many species of tortoise. In the wild, these spend many hours a day exposed to hot sunshine and high UVB levels, in places such as the Mediterranean, Arizona and the Australian outback where peak readings of 350 - 450uW/cm² are commonplace for two or three hours a day, around noon, in the summertime."

They have alot of graphs and info on the page for example one 5.0 24" flourescent tube without reflector gives aprox 100uW/cm² at 2" distans from the tube with reflector the uW/cm² almost doubles, but 2" is pretty close and ypou still only get aprox 200uW/cm² not that much compared to nature 350-450...

Br
Anders

13-09-2011, 11:11 AM	#16
Ozric Jonathan Senior Member Adult Join Date: Feb 2008 Location: West of Scotland Posts: 4,226	The word tube here is crucial. If its a tube it does not generate a Significant amount of heat and cannot be used with a thermostat. If its a heat and uvb bulb then it is sold at so many watts not at a % of uvb. Combined heat and uvb bulbs must not be connected to thermostats. Sorry Paulus if we are swamping you. Please can you double check exactly what product you plan to buy and we can be definite. __________________ Testudo Hermanni Hermanni (Corse) tortoises

13-09-2011, 08:27 AM	#11
paulus Member Hatched Join Date: May 2011 Location: Colchester Posts: 404	Will have to have a little play with the set-up I was planning to do to fit that bulb chris as I'm planning on doing one table split in two to enable me to have younger hatchlings and older ones in one table and have the uv all the way across the back. But then I could hang this over the devide and they would get uv from the deviding wall out, will see what the shop has when I get there later. But then it may not work with the heat either think I'll build it and see, have all the wood so It wont cost me much apart from time.

13-09-2011, 08:34 AM	#13
paulus Member Hatched Join Date: May 2011 Location: Colchester Posts: 404	Think I may have confused things, at the moment I have a uv bulb in a screw fit fitting straight to the mains and a separate heat bulb controlled by a dimming stat, the one chris was suggesting was a combined one that from what I now understand does away completely with the heat lamp and dimming stat.

13-09-2011, 12:56 PM	#17
paulus Member Hatched Join Date: May 2011 Location: Colchester Posts: 404	Hi guys, the only confusion I had was how I would control the temp with the bulb chris linked me to, I currently run a UVB screw fit tube and a separate heat bulb run by a dimming stat. I can't afford the combined bulb at the moment so will probably get a higher UVB tube as I can at the shop later for the mean time. The problem arose because the UVB bulb I have is only a 5% UVB so I gather it is too low Appreciate all your advise and have taken it on board

13-09-2011, 07:02 PM	#19
anol03 Member Egg Join Date: Aug 2011 Location: Sweden Posts: 87	Well... I guess that you already have read the info on http://www.uvguide.co.uk. "Some reptiles are described as "sun-worshippers" including uromastyx, bearded dragons, chuckwallas, and many species of tortoise. In the wild, these spend many hours a day exposed to hot sunshine and high UVB levels, in places such as the Mediterranean, Arizona and the Australian outback where peak readings of 350 - 450uW/cm² are commonplace for two or three hours a day, around noon, in the summertime." They have alot of graphs and info on the page for example one 5.0 24" flourescent tube without reflector gives aprox 100uW/cm² at 2" distans from the tube with reflector the uW/cm² almost doubles, but 2" is pretty close and ypou still only get aprox 200uW/cm² not that much compared to nature 350-450... Br Anders

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