what size mag pump for 29 gallon sh tank

For in tank, that pump would be WAY, WAY too strong.

Seahorses don't do well in high flow situations. Low to moderate flow, max, is what I would recommend. And on top of the tank too, not too low where they will hitch onto things.

Felipe
 
I picked up a 200 gph pond magnetic pump. have it y'd off too my refugium to decrease excessive flow. seems to work great.
 
FWIW I used a Mag 3 T'd off for my 30g, and a Mag 5 restricted by a ball valve for a 44. In my 65 I used a Mag 5 running wide open.

I like Mag pumps. they have done good by me. My next pump is going to be for a reef and I am considering in Iwasaki.

JMO
 
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