Serious dangers of salt water tanks and any tank

[isaac1]

Hey I've been on this site for a while and in the hobby for about six years nows I've recently tore apart my 80 due to seal problems and started up my old 35 with what I had left over, up until last night I've never had a problem I noticed my skimmer wasn't working right ( cheap boyyo hang on) so I stuck my hand in water to plug the pump to check pressure, the minute I put my other hand on top of my tank bam shocked, it scared the crap out of me so I called around and I guess it happens a lot but they sell under water grounding plugs so just throwing it out there salt water plus voltage can equal death dosnt take much to kill some one specially In water so any and all vetrans plz comment your feed back and solutions, and if there's a fourm already done direct me to it plz!!!! Thanks

Isaac