In Pokémon Ruby, the moves that Tentacool can use include Supersonic, Poison Sting, Acid, Constrict, Wrap, Bubblebeam, Screech, Barrier, Hydro Pump, Hail, Toxic, Water Pulse, Ice Beam, Protect, Blizzard, Hidden Power, Frustration, Double Team, Return, Giga Drain, Rain Dance, Facade, Rest, Secret Power and Sludge Bomb.
Level 25.
Most Water Pokemon can learn surf in Ruby, like tentacool or wingull.
Tentacool, Relicanth.
rock throw
Barboach, the starter water type, Mudkip, Pelipper, Tentacool, Gyarados... just about any water type other than Wingull can learn Surf.
The Pokemon that can learn Ice-type moves in Pokemon Ruby would include Swampert, Tentacruel, Golduck, Seel, Dewgong, Cloyster, Vaporeon, Octillery, Suicune, Sealeo, Walrein, Jynx, Articuno, Swinub, Glalie, Laapras, Kyogre, Hitmonchan and Medicham.
It is random, but you're chances are 1 in 1800 something. I got a shiny tentacool.
he doesn't cause he is a rare Pokemon he can learn many moves around lv 80-140 but i strongly reccomand use dragon atks and return
just get a good rod and catch a tentacool in seawater
LV: 64 Zap Cannon 78 Lock on99 Aeroblast100 Sky AttackYou cant get these moves without Pokesav TM or Action Replay TM look at serebiinet.com.au/swellow/moves/ruby/ for the moves
I am not sure if there compatible but who ever his the female Pokemon the baby will be the preevolution of that Pokemon unless it doesn't have a preevolution and it will have the fathers TM moves as long as the baby can learn those moves.
I believe that you can get.... Machop, Geodude, Koffing, Grimer, Horsea, Abra, oddish, gloom, zubat, magickarp, tentacool