LiquidJoe;3282473; said:
what would be the optimal filtering system for a 300 gallon tank that is stocked with a bunch of cichlids?
Being plumbed to the Lake/River that the Cichlids are native to and with a trained monkey doing a constant substrate vacuuming…
There is no perfect, ideal or best filtration… there are simply too many details to factor in to come to a conclusion… but the thought of a monkey doing a constant siphon made me grin so I thought I’d share it
The two “Hang on Back” units they show is A) A HOB Wet Dry for $210 & B) a HOB External Overflow…
A) I have never seen this particular item in person and therefore cannot say much about it. If you use a Sump for the tank I would strive to incorporate the Wet Dry into the Sump and save yourself the expense as well as the need of having an external filter hanging on the tank…
B) This type of overflow is used when a tank is not drilled.
You certainly could use your 110 gal as a Sump… although personally I would be much more inclined to purchase a large Rubbermaid Tub from Tractor Supply and use the 110 gal as an aquarium or sell it to offset costs.
There are two basic approaches you can take… Either purchase all of the items from a supplier. This will cost significantly more but will give you the benefit of having a “plug & Play” system…
Or you can do some research and design a custom system for your specific needs and build it yourself (the filtration, not the actual aquarium). This will safe you a good bit of money and will allow for a better filtration system in the end yet will take more time, effort and energy on your part…