Currently there are two crabs in the tank. At least one is alive, bc I notice some stuff moved around in the tank in the morning. However, I have yet to see either one and it's going on a couple weeks now.
After much reading on this site I think my sub should be deeper, so i want to add new sub as well. Also, I'd like to add two food containers to be used for sw and fw, as I've seen on the forum.
So, my question is, can I do this all at once (put in new sub, sw & fw bowls, add new crab & basically disturb the whole tank in order to rearrange it) even though my two crabs are buried during the day (but at least one comes out at night)? Or, how should I go about this?
Also, I've been trying to grasp the whole lighting thing. I would like some light source for viewing at night and during the day (currently using a flashlight to see into the tank better lol). I have a screen lid with Sara wrap and towels on top. It's a 10 gallon, but will upgrade it in the fitire, so don't want to sink a ton of $$ into it, but it would be nice to be able to see the tank better. What's the best option for lighting and what kind should I get?
Thank you in advance!

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