if i were to make say a 5 and 1/2 gallon fuge for my 20 long tank would it be at all usefull for the tank i have or is suck a small one obsolete should it be bigger thanks alot
I have an above tank 6 gal fuge, I made it out of an acrylic eclipse tank. I have 3" dsb in it some LR, and tons of caulerpa growing. Also tons of pods and bugs. My nitrates went to 0 after setting it up. I would say even a small one is worth it.