I've had my african sideneck for 5 weeks and he is still not basking. The water temperature stays around 75 degrees. I have a 75 watt light as well as a a uvb. The basking area stays around 95 degrees. He seems comfortable with us now and greets us when we walk into the room. Is there any suggestions on how to get him to bask? He is starting to have algae grow on his shell and I don't want it to rot. Thanks