Deep Sea Civilization- my Mermail deck

Can someone review my deck?

Monsters- 17:
1 Tidal, Dragon Ruler of Waterfalls
3 Mermail Abyssmegalo
2 Mermail Abysspike
1 Mermail Abyssmander
3 Mermail Abyssgunde
3 Mermail Abyssdine
1 Fishborg Archer
2 Maxx "C"
1 Glow-up Bulb

Spells- 16:
1 Raigeki
2 Moray of Greed
1 Hidden Armory
1 Soul Charge
1 Terraforming
1 Gold Sarcophagus
2 Salvage
3 Mystical Space Typhoon
1 Abyss-scale of the Cetus
1 Snatch Steal
2 Lemuria, the Forgotten City

Traps- 7:
1 Abyss-squall
1 Torrential Tribute
1 Trap Stun
1 Breakthrough Skill
1 Compulsory Evacuation Device
1 Abyss-sphere
1 Solemn Warning

I haven't decided on an extra deck yet for I'm tired prior to posting, so suggestions is appreciated.

Well it depends on wheter you want to run it on pure mermails or have some additional techs, cuz mermails have a couple of tricks that they can use (could probably use cat shark but I still need to test my formula on that)

Also I'm surprised you haven't mentioned torrential reborn or Poseidon wave in ur list since they could fix your deck's issue for lack of traps.

As for spells......it's kinda cliched, I feel like triple mst would be impractical and snatch steal makes it look like that the win is stolen (no pun intended)

With spells I was sticking to what I knew, and I dont know a whole lot.

-1 Soul Charge +1 Torrential Reborn b/c SC feels pretty pointless
-1 Salvage +1 Abyssteus cuz Salvage likes to clog my hand and I think I lack monsters
-1 Snatch Steal +1 Rank-up Magic Barian's Force

And as for an Extra Deck:
1 Mist Worm
1 Gungnir, Dragon of the Ice Barrier
1 Dewloren, Tiger of the Ice Barrier/Goyo Guardian
1 Mermail Abyssgaios
1 Number 74: Master of Blades
1 Number 11: Big Eyes
1 Number C73: Abyss Supra Splash
1 Number 25: Force Focus
1 Number 61: Volcasaurus
1 Number 73: Abyss Splash
1 Number 47: Nightmare Shark
1 Abyss Dweller
1 Mermail Abysstrite
1 Wind-up Zenmaines

I have no idea what I'm doing with my extra deck.

You do realize supra splash is useless without a rank up magic so it's too situational

Yes, and like I said, I had no idea what I was doing for the extra deck.  I built it in like, 3 minutes. What throws me off about decks that have access to a variety of different rank xyz is just that.

Heres my suggestion

Monster
.Imairuka
.Mermail Abyssnose
.Beautunaful Princess

Spell
.Surface
.Aqua Jet
.Swords of Revealing light

Trap
.Add more Abyss traps including Abyss Scorn
.Bottomless trap hole
.Wall of Disruption

Extra
.Fortress shark
.Bahamut shark
.Ragna Zero
.Ragna Infinity (optional)
.Ascension sky dragon or Leo keeper of the sacred tree
.Samsara dragon of rebirth

ok