I have a 90 gallon aquarium cichlids, would this be good or should I get a larger flow model? Is it better to aim it up towards the tank surface?
243619
You definitely want a higher flow for a 90. I have a 75 and the Hydor 1150. Flow is good, not to low and not too high. 1150 or the next size up would be better for a 90. I was told to aim at the surface of the water to encourage CO2 exchange and not blow your sand around.
22344
That's what I have done; because of my hood, I can't raise the lip of the filter very much above the level of the water. I would have liked to be able to; that way there would be some aeration. I do have a smaller model in my 5 gallon betta tank that I don't have supplemental air. Because of this, occasionally I notice a sheen on the surface of the water. If your fish can handle extra circulation, I say go ahead and do it. I've been using a Top Fin pump from a local business that is still going strong after a year
690996
I had one in a 20L and thought it provided good flow for that size. I have also used it for a 10g QT tank as the only flow, it works well for that purpose as well. Depending on the amount of flow you need in the 20L and the amount of rocks / etc in there, you may need more flow than just one koralia 425.
1014030
I've got a 306 for a 38 gallon, and the flow is way too strong, it moves all the sand and lighter items. I have to set it to half the flow. But I assume that one still benefits from the larger bio-filter.
1801432
No problem, I use it on a planted 90, with Angels and Discus. There are flow control valves on the inlet and outlet of the pump. Initially I closed off the inlet a little bit, but after a few months I increased the flow, between filter cleanings.
2106617
I think that this would be a bit much for a 40 gallon tank. I would go for a lesser model. it works well on my 55 gallon tank but I would not go lower than that
126685
Sadly, no. I have a 3 gallon pico tank, and I thought this would kill my corals with the flow rate. But it has had the opposite effect. Also, you can choose the "direction" of the flow. Either through the bar, or there is a fan tip option. Wonderful system!
1397111
the lowest setting is fine for my 15 gallon tall. I have 5 galaxy barbs, two albino cories cats, two amino shrimps, an otto catfish and a shit load of snails(Note: a bunch of moss cover my intake tube from time to time). But it depends on the fish you plan to get too. do your fish come from a place with fast moving water or slow? Since you already have a spare C4 and a tank just try it out. worse case you return the fish back.
828318
I would suggest trying just the Aquatop and see how much it circulates first. You may be surprised. It really moves a lot of water. I have it on a 120 gallon tank and wouldn't use any thing more unless I was doing a salt water set-up and wanted a wave maker. Even then it is more than adequate. Remember this, canister filters filter more water by design that H.O.B filters do.
2190871
I use it on a 65 Gal. With 100 although it's supposed to handle it I would go with a bigger pump because overtime you lose pressure as the filters get dirty. It's also a pain to restart when you clean it up. I've had tons of issue with this pump including flushing organic debris back into the tank when restarting it after cleaning and leaks. I actually ended up removing the fine filters and added an Aquaripure nitrate filter, I don't even clean it anymore, just clean the foam filter that's at the intake in the aquarium. If I had to do it again I would go with a Fluval FX5 instead.
1810077
My tank is 3 gallons. It is strong enough for a larger tank. I keep the air stone around 2/3 of the way down in the tank in order to keep the waste from blowing around. It isn't too big. The fish like to swim nearby it. The Marina is much more quiet than another one that I have.
1194433
It depends on the flow rate you need. If you have a 750 GPH overflow (or 900 in my case) this pump will work fine. If you require more, you'll want to go larger. Typically, a general rule of thumb is 10 GPM/gallon (i.e. 1000 GPM for a 100 gal tank) but its up to you and depends on how much overall flow you want/need in the tank.
1606479
I got the Tetra pond 1900 if you want water to flow you need it to pump up hill or it will only trickle and you will not have any real flowing water.I have a small 150 gallon pond and got this box that pump and the piping and works great. I have used a lot of pumps and this the best others Were way to small.
2066767
If you're looking for water movement, I highly suggest an air pump, air line and air stone. This is over kill for that... if you really want it, make sure the dish is several inches thick. This pump can be adjusted but may still be too strong. I usually use these just for waterfalls in vivariums.
2181468
You may want to go bigger. I currently have mine going up four feet with a " return line, a 13-piece section of loc line, and a tee to a small DIY reactor. It's just powerful enough, in my opinion, and I have a 90-gallon tank (with two power heads).
477840
I would go up a size for more high tech setups. I have this one in a 75 and movement starts to fizzle around 2/3 across the tank.
690994
This what I used for my quarantine Tank for new comers. Fish seemed to like it. Real quiet. I do agree with capslock and it might not be enough to clear all dead spots in tank if you have alot of decor. A friend of mine has two of these with the random flow caps on top of them, His tank is a taller 30g though. If you need more info share what kind of tank your setting up too, this will help define what flowrates are needed, ie. is saltwater, reeftank, freshwater?