50 - 68 depends what game your talking about
blastoise learns it at lv 68 not sure if squrtile can learn hydro pump hope this helps.
Vaporeon learns Hydro Pump at level 71.
Lv 56
60
Lvl. 46 in blue/red/yellow Lvl. 49 in fire red/leaf green/ruby/sapphire/emerald And not sure about the rest... Hope this helped
gyrdos learns hydro pump at lv 41! i hope i helped you :)
Feraligatr learns Hydro Pump at Lv. 63.
never, mudkip however learn it @ lv 42
blastoise learns tackle ( already knows) lail whip (already knows) bubble (already knows) withdraw (already knows) water gun at lv.13 bite at lv.19 rapid spin at lv 25 protect at lv.31 rain dance at lv.42 skullbash at level 55 and hydro pump at lv 68 i hope i helped
Lv.40
fi know well most of you think that blastoise learns hydro pump at level 63 cuz Gary had it at the Pokemon league he mustve hacked the gam but idk. anyways the level that blastoise learns hydro pump is..(drum roll) 68! level 53
Sadly he doesn't. Sorry.