You will much more lighting for the anenome. They require at least 4 to 6 watts per gal
. of CF
. It will not last six months waiting for a lighting up-grade. These are not easy creatures to keep. They require strong light, perfect water parameters and should never be attempted in tanks that are less then one year old. In your current situation you are setting yourself up for disastor. I feed mine froozen squid and mysis shrimp every other eday. As for the crabs...I would not risk it. You never know what their claws will go for in your tanks and they have a habbit of escaping.