MINECRAFT: Mo Creatures arent spawning, why?

I installed Mo Creatures correctly but not all mobs spawn. I've been playing for hours in different worlds and the only mobs that spawn are bunnies, chickens, goats and birds in some worlds. And in some worlds hostile mobs spawn but in others only vanilla hostile mobs spawn. I found raw fish on the floor and i assumed an animal killed a fish or something but then i saw a dolphin in land dying and it gave me fish and i saw a shark in a tree dying. It seems they are spawning in random places and there's no water mobs except squid. I go to Mod options and it says "Test 1 test 2 DISABLED" and i thats it. And on the main menu i go to "Mods" and Mo'Creatures doesn't have the config option, only the disable option. Why? What's going on?
What can i do?

Minecraft LAN says Unknown Host when trying to connect?

My sister and I are trying to connect to a LAN world, and when either of us opens to LAN and the other tries to connect, it says unknown host. We're both on the same Wi-Fi and have never had problems with LAN before. We just added mods but we both have them and their the same version. Any solutions/ ideas?

Can I compress a custom recipe into one command in Minecraft?

Hi, I love making "Vanilla Mods" for Minecraft, It's basically using Command Blocks to have mod-like effects. I've got my system working perfectly fine, but some of these Vanilla Mods require a concept called 'Custom Crafting Recipe' and this is what i have so far (sorry i don't know how to make a spoiler):
first command:
execute @p ~ ~ ~ testforblock ~ ~-1 ~ minecraft: dispenser 1 {Items:[{Slot:4b, id: minecraft: wooden_pic…
second command:
execute @p ~ ~ ~ setblock ~ ~-1 ~ dispenser 1 replace {Items:[0:{Slot:4b, id: minecraft: wooden_p… Of Density", Lore:["Hums gently around minerals."]}, ench:[{id:35, lvl:3}], Unbrea…

These two DO work, my question is: is it possible to have these in a single functional command?

Added (1). the codes are too long, so i'll put a printscreen in the answers (apparently i can't update with a picture).

I can't install optifine?

Hi, I'm trying to install the Optifine mod for Minecraft 1.8.7. Whenever I try and open it with Java, the command box (black code-like box) pops up for a millisecond saying "error (then some other stuff)".

What mine craft mod is this?

What Minecraft mod is this

I had a mod a long time ago and you can spawn buildings according to different themes. Example. Cowboy, japanese and stuff like that. You get a little object for each building and you right click it and you have your building. I made a cowboy town including a saloon and a train station what is this? Also on the japanese i can't remember much but i think i remember a wand you have to click the object with its really cool i think its for 1.6.4

Give me a good list of specs for a gaming pc i should build?

My budget is around $400 or a bit more on a gaming pc i want to build. I wanted to use the potato masher but couldn't get a cheap list, because it was more than 150 bucks than it actually is could've been (350). So i want someone to help me like by giving me a good list. Games i want to play - Minecraft (tons of mods including shaders) GTA V COD ETC. I found this one build but not sure if its good enough for good fps pcpartpicker.com/p/GjGpWZ

Minecraft, my RAM, modpacks, and FTB?

I use an HP Touchsmart 320 with 4
Gigs of ram. (I'm not sure what processor and whatnot) it was Windows 7. I tried to play FTB Infinity (161 mods) and it lagged badly on the home screen (single player, multiplayer screen) i managed to create a world and it took more than 10 mins to create a world and never loaded so i just closed minecraft. What should i do? I also used the Curse Launcher/Voice beta thing to launch the pack if that helps.

Why is my mine craft so slow?

It's really leggy and my pc isn't slow I can run fallout new Vegas on high and sky rim on medium just fine with no lag so why is my minecraft screwed I only have one mod installed so it's not that please help

Any suggestions for minecraft mods?

I'm looking for a fun minecraft mod for 1.7.10. Does anyone know any fun mod that you SHOULD have?

Minecraft 1.8.4 or any above will not open. Its weird because 1.8.3 and under will?

One day I accidentally opened a mod world in vanilla Minecraft. I do have forge, but I forgot to use it. So basically it was just super laggy, and if I press tab I had 0 Wi-Fi bars. Then finally it crashed. I tried to reopen 1.8.4 because I hadn't realized I forgot to open forge yet. But when I tried to open 1.8.4, the launcher would just disappear, and Minecraft would not open. Later, I tried opening 1.8.3. It worked. So I tried a lot of the older versions as well. They all worked. And when 1.8.5-1.8.7 came out, I got very excited. So I tried opening 1.8.5. It crashed the same way it did for 1.8.4. Same with 1.8.6 and 1.8.7. I was very disappointed. Ever since, I have been stuck playing on 1.8.3. Any ways I can fix this?