Advanced Aquarist
Fish Fanatic
RO/DI means you have a deioniser stage AFTER the RO output. This will get rid of the remaining contaminants. The TDS out of the RO will be about 10 or so, after the DI it should be about 0 - 2 at the most.
But you got to be careful, since RO output water is high in CO2 this can exhaust the DI resin quickly.
Why would you want RO/DI? Well in my case I had diatom/brown algae outbreak (you seem to have some too) if I only used RO. Adding DI will take out the silicates and the other offending contaminants that will cause diatom algae. I know when I my DI resin is exhausted when I do a water change because diatom algae start appearing . . I use a TDS meter now to check the DI output.
Making your own ferts is actually very cheap, only issue is with the trace mixing, then you're talking needing a milligram scale, I had to buy one, costs about £300, but I make my trace element mix to last me at least half a year. You also have to keep the trace solution in the fridge. Macros you only need modest scales since you're dealing with gram measurements. For this reason most people buy Trace element mixes because it very fiddly to mix your own.
You can run 900 lph on your tank - I just don't see the point of that. With resistance and mechanical filter clogging up over time you're probably going to see maybe 500 lph at the most. There's also the issue of how strong the pump is and most canister filters have "weak" pumps that drop flow quickly as they get dirty. ADA superjets actually have lower flow rates compared to their size BUT a higher head to maintain the flow rate as resistance builds up. Also most fish don't actually like having high flow rates in the tank, they appreciate dead spots and quiet areas.
I've heard of people having problems with the seals on the Oase filters, this might have to do with them having such a high flow since this requires a tighter seal, and the squarish canister shape is not optimal for seal compression.
The person I'm conferring with for advice on Trace element mixing is running his planted tank using air operated sponge filters!!
But you got to be careful, since RO output water is high in CO2 this can exhaust the DI resin quickly.
Why would you want RO/DI? Well in my case I had diatom/brown algae outbreak (you seem to have some too) if I only used RO. Adding DI will take out the silicates and the other offending contaminants that will cause diatom algae. I know when I my DI resin is exhausted when I do a water change because diatom algae start appearing . . I use a TDS meter now to check the DI output.
Making your own ferts is actually very cheap, only issue is with the trace mixing, then you're talking needing a milligram scale, I had to buy one, costs about £300, but I make my trace element mix to last me at least half a year. You also have to keep the trace solution in the fridge. Macros you only need modest scales since you're dealing with gram measurements. For this reason most people buy Trace element mixes because it very fiddly to mix your own.
You can run 900 lph on your tank - I just don't see the point of that. With resistance and mechanical filter clogging up over time you're probably going to see maybe 500 lph at the most. There's also the issue of how strong the pump is and most canister filters have "weak" pumps that drop flow quickly as they get dirty. ADA superjets actually have lower flow rates compared to their size BUT a higher head to maintain the flow rate as resistance builds up. Also most fish don't actually like having high flow rates in the tank, they appreciate dead spots and quiet areas.
I've heard of people having problems with the seals on the Oase filters, this might have to do with them having such a high flow since this requires a tighter seal, and the squarish canister shape is not optimal for seal compression.
The person I'm conferring with for advice on Trace element mixing is running his planted tank using air operated sponge filters!!
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