I am very excited as I have just received my 300 DD tank from Marineland. I am interested in keeping and not drilling the tank and utilizing the existing overflow and return in each corner. I also want to keep it as quiet as I can. Does anyone have any ideas on the best way to accomplish this. I will be plumbing this to a fish room in the basement.
Just received my Marineland 300 DD aquarium
- Thread starter Waysail
- Start date
Vinny Kreyling
Premium Member
These tanks do NOT run well with a lot of flow.
Use something in the tank for extra water movement.
Use something in the tank for extra water movement.
Great Tank congrats on the purchase,
I am in the midst of setting up a 300 DD also, I am planing on converting the four 1" bulkheads to make a Herbie/Bean Animal as per Gmac diagram.
I will be draining this to my fish room in the garage which is the half the distance of my basement.
My return lines will be simply plumbed to be independent exiting anywhere in the back of the tank, so this will allow me too use a both cornerflo`s as drains,allowing much more flow.
Before you put water in the tank, highly consider building a high stand. If you purchased the Marineland stand even more.
The marineland stand is well built and incorporates well with the rest of the furniture but the stand is very low from a tank visual and tank maintenance perspective the stand height sucks.
You can build an attractive platform to your existing Marineland stand, cut out the bottom of the stand and suddenly you can use a 32" high skimmer or grow mangroves.
If its in wall then disregard but same advice, built it high.
The marineland stand is well built and incorporates well with the rest of the furniture but the stand is very low from a tank visual and tank maintenance perspective the stand height sucks.
You can build an attractive platform to your existing Marineland stand, cut out the bottom of the stand and suddenly you can use a 32" high skimmer or grow mangroves.
If its in wall then disregard but same advice, built it high.
kris101
Premium Member
+1 My 300 dd sits at 41" high.. great for viewing. Mine has a bar incorporated.
The reason that I did not purchase a 300dd is that the standard holes are too small, and the tempered glass cannot be drilled...IMO you should use all 4 holes as drains, and have 'over the top' returns
twon8
Formally registered membe
I initially wanted a higher stand but the tank is in a business and a good portion of the tank watchers are young children who wouldn't be able to see into the tank if it was much higher up. I have a seperate room with the sump and use under the tank for backup power ups's, tunze controller
davebehlen
New member
Maybe a good provision depending on how much flow you run through the overflow/return.
I use both 1" drain holes in my tank at about 2300 GPH flow from two return pumps (calculating stated head loss and resistance).
Each of the stand off pipes in the two overflow boxes is 1" with two Ts and then a cap at the top. Each T has a 90deg street elbow pointed down, and the cap is drilled the size of airline tubing. I have airline tubing stuck in the caps going up above the tank and that allows vacuum air to pull in and keeps the overflow box waterline above the elbows so they do not make the sucking noise. Also by having the stand off pipe as tall as possible keeps the water overflowing in to not make as much waterfall noise going into the boxes. (also seen in pic, the top 90deg elbow is offset and has a bit of pipe added to keep it down in the water line....it is really just there as a back up should the first one get a clog)
