Best level to survive on marsh cave

Answer from: Bryan
The best as you can!!!! at least 10! (I enter marsh cave in lvl 12).

Answer from: Yosua
@Bryan: hey! My brother can get on Matsh Cave when he on lv 7.... But I'm? 6...... I think, the best level is, when you have Fira, Blizzara, Thundara, Cura, Diara, Sleepra, Slow, and all magic on Lv3 and Lv4

Answer from: bryan
I don't think so. Yosua you enter marsh cave on lvl 6 right? I think its too hard.

This is my record:
Marsh cave on lvl 12
Mount Gulg on lvl 30
Cavern of ice on lvl 37
Flying Fortrees on lvl 43

Answer from: Yosua
@Bryan: To hard if you not an Expeert. If you feel hard on some Dungeon, just buy 50 Potions and 50 Antidotes. Now the most stucker on this game is Marsh Cave. Because you need to buy much of Antidotes here. You need Fira, Thundara, and Cura magic. Or if you don't have W.Mage on your party, just use poison. Sometimes you need much money for buy Mithril Sword, Lv3 magic, Lv4 magic. Try to buy Mithril Sword first (4000 gil). after buy this weapon, go outside the Elf village and just kill enemy as you can. until you can buy Magic. Oh yea, i forget to give you all know. DON'T EVER BUY COPPER ARMLET FOR YOUR WARRIOR, THIEF, MONK, AND RED MAGE!!!! Armlet is the best armor in this game, but when you buy copper armlet to the character that I post on this question, the Invasion and Defend might be decrease. maybe because it so weight.....

Answer from: flint
@bryan i did cavern of ice at 18 mount gulg 15 idk about marsh cave and flying fortress at 25

Answer from: johsan027
Lol.. i'll go for yosua.. i got there when i was lvl 6 also.. just to get the crown..