total of 400 gal
pumps add up to 18950gph
= aprox 47.375

33g LPS only. No sump.

Koralia 2 (600 gph)
MJ1200 (300 gph)

A couple small pumps running hob filter for carbon and PhosBan reactor which according to manufacturer's ratings adds another 300 gph to my tank, but I won't add them in because their flow is very indirect.

900 gph total = 27x turnover.

It's kinda tough to compare turnover and flow because the pumps are rated so differently especially when you compare impeller driven to propeller driven. So it's good everyone is listing the brand and model names. :) My MJ1200 puts out more "flow" than the Koralia 2 even though the Koralia is rated as having double the output of the MJ.

It would be tough to get two MJ1200s in my tank and not have my LPS freak out, which would only be 600 gph total going by manufacturer's rating and only 18x turnover. If I had two Koralia 2s I wouldn't get enough flow, and that would be 1200 gph total or 36x turnover. :lol:

Wow, I'm apparently inadequate in flow compared to you guys........
15gal breeder style
~700gph flow

47x turnover on 15 full gallons......I have 17lbs rock and 30lbs deep sand bed so probably closer to 12gal water volume, which is 58x turnover.....

Nothing wrong with that if you are keeping SPS... probably a bit much for LPS/softies though... (58x)

wow, tottaly forgot about this thread, LOL.

no doubt, i will have to edit mine now :lol:

same here, haha

Someone linked to it, and I decided to reply. :lol:

I wouldn't have found this thread if it hadn't been revived... it's been very informative! I'm aiming for an intermittent random flow in my nano, so this thread has been invaluable. Thanks to everyone who put in their 0.02!

My post needs editing big time:biggrin: