So I have a 20 gallon long terrarium for Rambo (for now) and I'm fearing that the MVB (when I get it in 5-8 days, just ordered it) bulb will be too close to him? I'm asking this because he has a lot of energy and he likes to climb on his log hide out which is right under where the MBV bulb will be and where the bulb I have now for him is.