Aquatic Assault

You can battle the Pets at any time, no World Quest requirement.
Should take 180 Pet Battles in total to do all achievements with each type.
ALL fights are Single [pet-ability=1089] Pet Encounters.

I have attempted to provide as much accurate information on this subject as possible at this current point in time.

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Achievement: Family Fighter
reward: [item=153040] / [npc=128146] Battle Pet
abilities: [pet-ability=901] [pet-ability=159] [pet-ability=568] [pet-ability=499] [pet-ability=165] [pet-ability=519]

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requirements for Family Fighter:

• 
  
• Aquatic Assault
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• Critical Critters
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• Elemental Escalation
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• Humanoid Havoc
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• Mechanical Melee
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• Beast Blitz
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• Draconic Destruction
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• Fierce Fliers
• 
  
• Magical Mayhem
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• Unstoppable Undead
• 
  

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pets you will need to defeat: Anomalous Animals of Argus
> big shoutout to wowhead member Lazey for his excellent & detailed info on these encounters! <

• [npc=128007]

Zone: Krokuun, Petrified Forest
Cords: 66.7, 72.6
World Quest: Ruinhoof
HP: 1919 Power: 533 Speed: 384

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• [npc=128009]

Zone: Krokuun, Black Gorge
Cords: 43.0, 52.0
HP: 1997 Power: 518 Speed: 309

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• [npc=128011]

Zone: Krokuun, Shattered Fields (inside cave)
Cords: 29.6, 57.9
World Quest: Deathscreech +75 Rep with [faction=2165]
HP: 2075 Power: 503 Speed: 356

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• [npc=128013]

Zone: Mac'Aree, Conservatory of the Arcane
Cords: 67.6, 43.9
HP: 1958 Power: 525 Speed: 338

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• [npc=128015]

Zone: Mac'Aree, Azurelight Square
Cords: 60.0, 71.1
HP: 2036 Power: 510 Speed: 300

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• [npc=128017]

Zone: Mac'Aree, Shadowguard Incursion
Cords: 31.9, 31.2
World Quest: Corrupted Blood of Argus +75 Rep with [faction=2170]
HP: 1919 Power: 533 Speed: 291

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• [npc=128019]

Zone: Antoran Wastes, Fiend's Run
Cords: 51.6, 41.4
World Quest: Watcher +75 Rep with [faction=2165]
HP: 1801 Power: 555 Speed: 413

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• [npc=128021]

Zone: Antoran Wastes, The Sprit Crucible
Cords: 56.1, 28.7
HP: 1958 Power: 525 Speed: 309

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• [npc=128023]

Zone: Antoran Wastes, Terminus
Cords: 76.7, 73.9
World Quest: Minixis
HP: 2192 Power: 555 Speed: 225

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• [npc=128008]

Zone: Krokuun
Cords: 51.5, 63.8
World Quest: Foulclaw +75 Rep with [faction=2165]
HP: 1840 Power: 548 Speed: 384

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• [npc=128010]

Zone: Krokuun, Nath'raxas Hold
Cords: 58.3, 29.7
World Quest: Retch +75 Rep with [faction=2165]
HP: 2114 Power: 495 Speed: 319

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• [npc=128012]

Zone: Krokuun, Shattered Fields
Cords: 39.6, 66.5
HP: 1997 Power: 518 Speed: 328

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• [npc=128014]

Zone: Mac'Aree, Conservatory of the Arcane
Cords: 69.7, 51.9
HP: 1879 Power: 540 Speed: 375

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• [npc=128016]

Zone: Mac'Aree, Umbra Hollows
Cords: 36.0, 54.1
HP: 2036 Power: 510 Speed: 328

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• [npc=128018]

Zone: Mac'Aree, The Praetorium
Cords: 74.7, 36.2
World Quest: Mar'cuus +75 Rep with [faction=2170]

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• [npc=128020]

Zone: Antoran Wastes, Fiend's Run
Cords: 56.6, 54.2
HP: 1879 Power: 540 Speed: 291

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• [npc=128022]

Zone: Antoran Wastes, Felfire Armory
Cords: 64.1, 66.0
HP: 2153 Power: 488 Speed: 263

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• [npc=128024]

Zone: Antoran Wastes
Cords: 59.8, 40.3
World Quest: One-of-Many
HP: 2114 Power: 495 Speed: 281

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[npc=128011]

[npc=86879] with Tail Slap, Call Lightning and Whirlpool
[npc=73359] with Frog Kiss, Toxic Skin and Swarm
[npc=82045] with Arcane Slash, Amplify Magic and Moon Tears

Start with Call Lightning and follow with 2 x Tail Slap then a Whirlpool. Your Hydraling is probably dead now, but if not just follow up with another Tail Slap.
When Gulp Froglet comes out use Toxic Skin and then Swarm. It is tempting to use Swarm first and have Whirlpool hit double but without a crit that's only around 230 extra damage. But it means your Toxic Skin won't apply until the round your Gulp Froglet dies (Round 10). Toxic Skin hits Deathscreech at 103 a pop per round.
Moonshell comes out and it's Moon Tears, Amplify Magic and Arcane Slash till the finish.

I might have been lucky with RNG but tried this 4 times on different toons without a loss, so hopefully it works for you too. I can't get my head around the pet breed letter system lol. But for those of you who can work it out my Gulp Froglet is 1627hp, 257 power and 273 speed and my Moonshell Crab is 1725hp, 260 power and 260 speed. Hydraling only comes in one breed so no guesswork needed there.

For Gnasher, using any two aquatic pets with Rip and Blood in the Water can work. I used Chuck as my first pet, ripped Gnasher, used Blood and rip to fill until it died. I then switched to the 2nd pet and didn't need to use the third pet.