I am needing something for my 125 gallon aquarium for emergency backup incase of a power outage. Would 1 work or would I have to get 2 ?
590188
I would err on the side of caution and go with two. I use mine in a thirty gallon live well on my boat and it is more than sufficient to keep bait alive for a couple days. Fish tanks can have several thousand dollars tied up in tropicals and if it were my tank two would be my choice.
590189
I used two for a 200 gallon aquaponics tank, with a timing of 5 minutes on 5 minutes off. They put out a lot of volume. I would think one would be enough for an emergency.
802730
You should look for something with a little more power. This could power one no problem. 2 it wouldnt be able to be very loud.
1972004
Sure, but you'll be operating it at capacity and that might lower the life expectancy of the heater. I used two to reduce the load on just one big one and if one does go out, the other can carry the load until I get a new one. My tank is a marine tank, it might not be as big a deal for fresh water. Hope that helped.
349976
This unit is for 110/120 volt AC and the lamp is included. I have had mine running for the better part of a year and it is still doing a good job. Eventually the UV lamp will become less efficient and you will need to replace it (lamp only - not the whole unit). They say about once per year. It is designed for ponds up to 6,000 gallons so would be way oversized for most aquariums.
1073409
It depends on what you are doing with the tank. I have 2 in a 120 gallon mixed reef. ..
1714421
It would probably be alright, but only one and you won't have to turn it all the way up. I used 2 on a 125 and it was way more flow than 4 other power heads.
1398185
Yes, you would need two. Or you could take it off and switch from inside to outside. We take ours on and off.
1856113
I would say you will need 2 at minimum. You will have to hang fixtures at height that will give you the spread you are looking for to cover your tank.This light has been very good to me with LPS and a few SPS corals because it is adjustable for intensity. I have 2 over a 55 gal. (48" Long) tank. In 2 months I have seen a lot of new growth in my corals.
1568185
I use two for my 55 gallon reef. SPS/LPS mix. I only run them at ~70% strength and everything does great. I think one would be good.
1928963
For a 150 gallon tank. I am assuming that it is fresh water, but either way, I would purchase 2 - 300 watt eheims. If you have returns, I would place one in each. The reason why two is for redundancy if one fails. I have two setup on an Apex system and can keep the temperature constant at +-2 degrees. Also if you have to elevate the temperature of the tank to cure something like ich, having the two heaters will ensure you can take the temperature up.
537192
You will need 2. But I will say that this has been THE BEST SOLAR LIGHT. I have bought several types and this is the best. It soaks up the light during the day and runs for about 6 hours at night.
1917124
One is not enough for that tank. Buy two and dim them if there is too much light. These are nice lights and are a great value.
344741
I would recommend finding some higher quality heater for your 300gal tank. You could find a 1000watt heater or just run 2 heaters
1033920
I have two on my forty eight inch tank which covers the entirety of the tank, placing one may not be enough depending on the corals you play on the edges of the tank. Currently I have brains, pegoda cups, hammers, polpys, mushrooms, sponges and birdnests corals. All are doing very well at 2/3 volume. I started off with half volume on the lights to get the corals acclimated. The plugs are your typical 120 volt 3 prong plugs that works with any normal household outlet.
2211228
I only use one. That's my preference. Depends on what environment you plan to use it. I'd would purchase one. Determine if it meets your need thus, you may or may not want another.
1579638
One will be plenty. I only have one in my 36 gallon and it moves more then enough water.
3978
One was sufficient for my hard drive. I imagine it depends on the power needs of the drive.