Wo when you say short out and killing most of your live stock do you mean electrocution. because i have 3 Rios in my tank. One is 1700+ for the return one is a 600 and the other one is a M820ReelFreak said:SEIO pumps are a Rio product.....but much better than their older pumps. I won't run regular Rio powerheads, but do like and trust the SEIO. I had an issue w/ a small rio ph (older) shorting out in my tank and killing a lot of my livestock.
Tunze costs considerably more than Seios, hence the reason more and more are going for seios for a wide flow pump.
The tunze pumps are a high quality w/ very little electricity draw for the flow.....if you have the money, they are supposedly well worth it....to rich for my blood though.
HTH....I can probably find a link to the Seio controller you were speaking of though. I'll see.