Converting 75g Fresh to Salt

DKQuinn · Apr 25, 2021

Hi guys! I am planning on converting my 75 gallon freshwater tank into a saltwater aquarium reef. My question is whether or not what I have is sufficient filtration to convert it into salt. I have a Fluval fx4 and a Fluval 50 Hang on Back filter. I would LOVE to have a sump but do not have is drilled for one, or room for one under the stand. Is there a way to get some type of box that acts like a sump without having the tank drilled for it? If so, where can I find one?

Any help here would be greatly appreciated! Thanks!

Jekyl · Apr 25, 2021

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Mariette · Apr 25, 2021

I operated a 45g freshwater converted tank for over 2 years w a canister filter only. Keep bio load down. Get an ammonia badge. Stay on top of water changes. You’ll be fine

also, you can buy hand on back skimmers but I haven’t had much luck w them moving a significant amount of water

monkeyCmonkeyDo · Apr 25, 2021

A cpl manufactures make hob skimmer refugium combos. Or ppl might make an aio kit and and your 75g would be a big aio. How wide is it?
Esshops makes a hob overflow as well. If you done wanna drill.
D

MNFish · Apr 25, 2021

Fiji Cube AIO Box All-in-One Kit 4th Gen - 75 Gallon Standard

This is the 4th generation of the AIO DIY Kit with improvements made. The magnets and clamp are no longer provided in the 4th gen. A permanent silicone seal is required. Build your All-in-One (AIO) aquarium with Fiji Cube AIO box to maximize the fun of the aquarium hobby. Just drop this AIO box...

www.fijicube.com

I use this in a 75 gallon and am very happy with it...

DKQuinn · Apr 25, 2021

monkeyCmonkeyDo said:
A cpl manufactures make hob skimmer refugium combos. Or ppl might make an aio kit and and your 75g would be a big aio. How wide is it?
Esshops makes a hob overflow as well. If you done wanna drill.
D

The tank is about 4ft wide, 18 in deep if that makes any difference.

DKQuinn · Apr 25, 2021

MNFish said:
Fiji Cube AIO Box All-in-One Kit 4th Gen - 75 Gallon Standard

This is the 4th generation of the AIO DIY Kit with improvements made. The magnets and clamp are no longer provided in the 4th gen. A permanent silicone seal is required. Build your All-in-One (AIO) aquarium with Fiji Cube AIO box to maximize the fun of the aquarium hobby. Just drop this AIO box...

www.fijicube.com

I use this in a 75 gallon and am very happy with it...

This is amazing! I'm gonna have to look more into this. Can you put your skimmer into this as well? Or would if just be a hang on back? Thank you!

nervousandnew93 · Apr 25, 2021

The all in one kit works wonders I’ve used it myself as well!!!

MNFish · Apr 25, 2021

DKQuinn said:
This is amazing! I'm gonna have to look more into this. Thank you!

one warning you may not be able to post this on the side if there is a lot of extra silicone I needed to mount on the back, but even with that I have been happy with it....

monkeyCmonkeyDo · Apr 25, 2021

Remember that will be inside the tank. It will take away from your 18" wide. Why i asked.
D

monkeyCmonkeyDo · Apr 25, 2021

MNFish · Apr 25, 2021

DKQuinn said:
This is amazing! I'm gonna have to look more into this. Can you put your skimmer into this as well? Or would if just be a hang on back? Thank you!

I have a skimmer in mine and it works well if you can find one that fits... I am currently using the Figicube skimmer as well but I will measure the compartments tomorrow and post the sizes for options.

DKQuinn · Apr 26, 2021

MNFish said:
one warning you may not be able to post this on the side if there is a lot of extra silicone I needed to mount on the back, but even with that I have been happy with it....

When you mount it on the back, do you need to drill for the return? Or have it go over the top?