Joined
·
1,467 Posts
I think 2 of the 1500gph one's would be good for a planted or just fish tank, and see from there before committing to 4 units.
What fish / plants do you plan on keeping in the tank? You may not need to go with that high of a powerhead if the plants / fish don't like lots of flow.
I know a lot of people like to use HOB filters for extra flow in lieu of powerheads.
The tank will be planted, very heavy, it 72x24x24, using 2 overflows/sump. I just wanted to make sure I have enough flow, most because of CO2. Do you guys think I should go with a few of the 850's (4) or just 2? They are on sale, so I want to get them now and not wait. Or should I go with 2 that are more powerful. Don't want my plants on the side because too much flow.So much depends on the planting and layout of the tank that I see no firm answer. I have a korali nano at one end and a marineland at another point on the back wall and feel it is enough for my group but I tend to be more lightly planted than many. But on the other hand, I do have a couple very large rock piles that can block flow. I look at the debris and see where it settles to spot dead spots.
What size pump are you running for your return pump? That would help in trying to determine how much more flow you might need.Anyone else have any thoughts on this? Should I just order 2 of the 850's and see what happens or go larger?
I plan to go overkill on the pump I think, but really like these pumps.What size pump are you running for your return pump? That would help in trying to determine how much more flow you might need.
I have a koralia 550 on my 90 gal and run a mag 9.5 for my return pump. I also have an Eheim pro II so that adds to the flow. I would start with 2 850 if it were me and go from there.
Are you splitting the return pump into 2 returns? I think with either if those pumps you will be fine with 2 850's. When the tank gets really grown in and you feel like you need more flow you can always get another one but I think 2 with either if those return pumps will be more than enough.I plan to go overkill on the pump I think, but really like these pumps.
Waveline models:
DC-12000 (3170 gph)
DC-10000 (2853 gph)
So you think 2 of the 850's would be best to start with, I hate to buy 4 and not need them.
Yes 2 returns, so once it comes out of the pump, then it will split to each side of the tank.Are you splitting the return pump into 2 returns? I think with either if those pumps you will be fine with 2 850's. When the tank gets really grown in and you feel like you need more flow you can always get another one but I think 2 with either if those return pumps will be more than enough.