100 Gallon Arowana Tank

[bongko]

Hello,

I recently purchased a 100g tank with overflow/waterfall filter system attached to the back of the tank. There are 3 compartments to put in bio-balls and sponges, and then two smaller run off tanks where the pump goes. The pump is a Rio-1700 and is attached to the tank with a heavy rubber tube. I was also going to add a smaller jebo submersible filter used in my 30g tank (made for 30g tank, not sure the model number).
My first question is, do I have enough flow in the tank or should I ditch the jebo and opt for a larger submersible filter.
Another question is the location of the water heater. I have a 250W heater and I just wanted an opinion on whether people had better results sticking it horizontally in the middle of the tank towards the bottom, or upright and in a corner next to the submersible filter.
And finally, I bought the tank used, it was used to breed flowerhorn and was running for over two years. I was going to use the existing bio-balls and filters, after picking off the crap (uneaten krill and foods) from the balls and filters. My question is do I have to wait for my water to cycle before I put in my arowana? Obviously I won't dump him in there the day I set it up, but I am just wondering if I should play it safe and wait a week before anything.
Any advice would be greatly appreciated!

 

[Circa4190]

A 100g tank is not large enough for a full grown Aro, 125 is minimum, and I mean BARE minimum. They do best in a 240g or larger tank.

 

[meanbestorque]

A 100g tank is not large enough for a full grown Aro, 125 is minimum, and I mean BARE minimum. They do best in a 240g or larger tank.

You didn't answer any of his questions. What if his aro is 4"? A 100 gal. tank would be fine for a growout.

Hello,

I recently purchased a 100g tank with overflow/waterfall filter system attached to the back of the tank. There are 3 compartments to put in bio-balls and sponges, and then two smaller run off tanks where the pump goes. The pump is a Rio-1700 and is attached to the tank with a heavy rubber tube. I was also going to add a smaller jebo submersible filter used in my 30g tank (made for 30g tank, not sure the model number).
My first question is, do I have enough flow in the tank or should I ditch the jebo and opt for a larger submersible filter.
Another question is the location of the water heater. I have a 250W heater and I just wanted an opinion on whether people had better results sticking it horizontally in the middle of the tank towards the bottom, or upright and in a corner next to the submersible filter.
And finally, I bought the tank used, it was used to breed flowerhorn and was running for over two years. I was going to use the existing bio-balls and filters, after picking off the crap (uneaten krill and foods) from the balls and filters. My question is do I have to wait for my water to cycle before I put in my arowana? Obviously I won't dump him in there the day I set it up, but I am just wondering if I should play it safe and wait a week before anything.
Any advice would be greatly appreciated!

Your Rio-1700 pumps out approximately 620 GPH @ 1 ft.head. Seeing as how a 8-10x turnover rate is recommended, you will most likely not have adequate filtration for a 100 gallon tank. You will need approximately 800-1,000 GPH. The locaton of the water heater doesn't really play a role, however, I would recommend placing the heater low in the tank so you wont have to remove it or turn it off during water changes. BTW, a 250 watt heater will not be sufficient for your tank. Adding another 250 watt heater may do the trick, depending on how drastic the temperature change needs to be. Your last question is a little difficult to answer for there are many factors that can alter an opinion. Is the bio media still in the filter w/ the filter still running? If not, has the media been stored in tank water? If the media has already dried out, the answer is no. You will have to re-cycle the tank again. If otherwise, I'm sure your tank will be fine with the already-cycled filters.

 

[Bderick67]

A 100g tank is not large enough for a full grown Aro, 125 is minimum, and I mean BARE minimum. They do best in a 240g or larger tank.

If you gonna give advise that is beyond the question asked at least be correct and complete with.


I believe you already have the aro, 4"jardini? Really need to make sure the tank is fully cyccled before introducing the aro. Depending on method of cycling it could be over a month before you can put your aro in that tank.

 

[jcardona1]

A 100g tank is not large enough for a full grown Aro, 125 is minimum, and I mean BARE minimum. They do best in a 240g or larger tank.

wtf??? what planet are you from where aros fit in a 125g?

 

[jcardona1]

and to answer the OPs question, if youre not using seeded media, youre definitely gonna need to cycle this tank. a normal cycle will take 4~6 weeks, dependent on several factors.

NOW, about the size of your tank. please understand that a 100g is no where near big enough to house an arowana for life. youll need something at least 2.5x bigger than that

 

[dmopar74]

You didn't answer any of his questions. What if his aro is 4"? A 100 gal. tank would be fine for a growout.



Your Rio-1700 pumps out approximately 620 GPH @ 1 ft.head. Seeing as how a 8-10x turnover rate is recommended, you will most likely not have adequate filtration for a 100 gallon tank. You will need approximately 800-1,000 GPH. The locaton of the water heater doesn't really play a role, however, I would recommend placing the heater low in the tank so you wont have to remove it or turn it off during water changes. BTW, a 250 watt heater will not be sufficient for your tank. Adding another 250 watt heater may do the trick, depending on how drastic the temperature change needs to be. Your last question is a little difficult to answer for there are many factors that can alter an opinion. Is the bio media still in the filter w/ the filter still running? If not, has the media been stored in tank water? If the media has already dried out, the answer is no. You will have to re-cycle the tank again. If otherwise, I'm sure your tank will be fine with the already-cycled filters.

6.2X turnover is more than enough, wtf is peoples obsession with giant turnover rates?
a 250w heater is plenty for a 100g assuming your keeping the tank in the house at reasonable living temps. to put this into perspective i run 5watts per gallon in my garage where room temps drop into the mid 30's, and my tanks stay nice and toasty at 80+, 2.5w per gallon will be fine for in home use.

 

[Bderick67]

What happened to the 180g you were going to get? Your jardini will be fine in the 100g for a while, what are the dimensions of this 100g tank? Definite improvement over the 30g

 

[bongko]

Thanks again for all the advice!
I tried to get the 180 gallon tank but the dealer "accidentally" stated it was acrylic but in reality it was glass that was sanded on the corners to fit into a box stand. realllllllly disappointed.
I was lucky to get this acrylic tank for a very cheap price. The dimensions are roughly 5-5.5" long by 2'5" tall by 2' wide. Roughly.
I figure I can do with this tank for now and see how my arowo comes along. I do realize that I may need another tank later, and sorry I didn't say how big the fish was earlier, but it's only ~6" now. Hopefully everything works out so that later I can get a bigger tank.

 

[I<3fish]

Think he means measure it. It is probably a 4x2x2...
Get another heater, another 200 watt will be fine. I agree, you need to let the tank go through a cycle where the bacteria can grow on the bio media before putting any fish in it.