,however this has stopped about a week ago. So now my female has being acting strange, i have not seen her basking instead see is sleeping at the bottom of the tank while the other turtles are active and swimming around. So my question is, could she be sick, pregnant, etc..Her shell is about 6-7 inches, recently there uvb bulb burnt out but the strange activity started before it burnt out. The three turtles are in a 20 gallon tank (yes i know its small...there old tank broke and i don;t have enough money for a new one yet). They have a good filter and a basking dock however no heater. I did not realise they required a heater has they seemed fine with out it, the temperature is about 68. I do have a heater so i will put that in (its one of those glass tube style ones)
Also i went to my pet store and the uvb bulbs are around 25 bucks, is there some sort of "no-name" brand that i can get that is cheaper?....it seems quite expensive.
Thank you very much for reading this and any help would be much appreciated.

