Extra Fish
     Once you build an aquarium go to your marine guide then Rearrange
them  in  alphabetical  order.  Now when you go to the aquarium and do
exchange you can see fish you've never seen before.


Item Combos 

Acetic Anhydride + Acetyl Acid = Aspirin 
Beryl Knife + Basalt = Magnetite/Jade /Augite 
Beryl knife + Calcite = Limestone/Marble 
Beryl knife + Gabro = Magnetite/Titanium Ore/Apatite 
Beryl Knife + Granite = Orthoclase/Quartz 
Beryl knife + Opiment = Yellow Paint 
Deep Sea Water + Mega-ade 1000 = Mega-ade 2000 
Deep Sea Water + Mega-ade 2000 = Mega-ade 4000 
Deep Sea Water + Mega-ade 4000 = Mega-ade 8000 
Deep Sea Water + Mega-ade 500 = Mega-ade 1000 
Deep Sea Water + Tourmaline = Mineral Water 
Diamond Knife + Calcedony = Carnelian/Sardonyx/Chrysoprase 
Diamond Knife + Corundum = Ruby/Sapphire 
Diamond Knife + Quartz = Citrine/Crystal /? 
Limestone + Gabro = Cement 
Mineral Water + Mega-ade 2000 = Supertonic Turbo 
Mineral Water + Mega-ade 4000 = Supertonic Extra 
Negative Ion Water + Mega-ade 1000 = Supertonic Dash 
Negative Ion Water + Mega-ade 4000 = Royal Ampoule 
Negative Ion Water + Mega-ade 500 = Supertonic 
Ring + Tourmaline = Ion Ring 
Snake Bite + Killer Spider = Scorpions Tail 
Titanium Alloy + Rebreather 10 = Infinite Rebreather 
Vanadium + Titanium Ore = Titanium Alloy 
Water + Mega-ade 300 = Mega-ade 500 
Water + Mega-ade 500 = Mega-ade 1000 
Water + Oxidized Alcohol = Disinfection Liquid 
Water + Tourmaline = Negative Ion Water 

Get Unlimited Rebreather 
     First  get  titanium  alloy by combining Vanadium + Titanium Ore.
Now combine Titanium Alloy + rebreather 10 to get Unlimited Rebreather.