The Planted Tank Forum banner
1 - 7 of 7 Posts

·
Registered
Joined
·
4 Posts
Discussion Starter · #1 ·
I have a 150G salt water tank and UGF setup. I would like to switch to fresh water and plants/fish. I have access to hydrilla, a fairly aggressive and hardy plant. can I reuse the pea gravel and UGF? Do I need to switch to a sand base for the plants to root better? Can I still use the UGF setup, if I go to sand?

thanks
 

·
Registered
Joined
·
605 Posts

·
Registered
Joined
·
11,721 Posts
Sand will sift between the plates, fill the void underneath. Many plants will grow OK in gravel, but when I ran several tanks with RUGF (Reverse Under Gravel Filter) system, the plants that grew best were the ones that grew off the plate. (Tank was an awkward length, plate did not cover all the bottom).
 

·
Registered
Joined
·
1,846 Posts
Over the years I have run UGF normally and reverse flow, on FW and SW tanks. At this point, I dpn't use them at all, although as you can see, there are some people out there that like them and still use them.

In my opinion, they work OK, but other more modern methods can work a lot better. Their one advantage I see is that they are very cheep to buy.

I found that in planted tanks, the roots really grew through the UGF plates and in time made any replanting difficult, because you would heavly damage the root system when you removed a plant.

What I do wonder is how you ended up with a 150 gal SW tank with a UGF. They haven't been common in SW tanks for something like 25+ years.

As for the "gravel" in SW tanks being reusable. This is usually either crushed coral, or aragonite sand or dolomite sand. All of these will add a lot of hardness to a FW tank and are best avoided for most systems. I would replace it.
 

·
Registered
Joined
·
4 Posts
Discussion Starter · #7 ·
UGF reuse

I have had the tank for about 20 years. Due to job changes and house moves, it has sat empty for a couple of years. I was thinking about restarting the tank as a fresh water and using some of the pest weeds that grown freely in the local waters
 
1 - 7 of 7 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Top