Grech Water Circulation pumps...

[robertjk7005]

ok so i've had these circulation pumps in my tank for about 4 months and they seem to be good so far. i wanted to see if anyone else has them and if maybe i have to much flow in my tank cause they are rated for 3200 gph and 1600 gph but i don't know how true that is. i have a 3200 on the left and right of the tank and the 1600 on the center back. any feed back will be appreciated

here is a link for both pumps
1600gph
http://www.ebay.com/itm/1600gph-DUAL...ht_1912wt_1038

3200gph
http://www.ebay.com/itm/3200gph-DUAL...ht_1912wt_1038

 

[Hawkeye]

never heard of them but that's a super cheap price though for that amount of flow. I take it they are some kind of chinese knock-off of a koralia or a tunze?

 

[fatoldsun]

I have these. Different name but the same general deal - Chinese knockoff, eBay, under $20, think mine are 1200 gph (not sure I remember) There was a whole thread back and forth that was lost with the site crash. I think the consensus was that they are made with the parts used to make older style Koralias. I didn't go with the dualies b/c I was worried they would be too strong. Not sure they're "controlable".

 

[howze01]

they look like a good alternative for a frag tank or something besides a DT.