- Jul 20, 2018
- Reaction score
Is 7 a good place to be with I’m high nutrients? Many fish, mostly angels, no LPS, using 3 radions xr 15s with 4 60 inch t5 bulbs 6 hours a day. (Aquatic life t5 hybrid)
Ok I mixed it up in gallon of Ro like recipe 1 states. Not all dissolved, when I poured solution into tank, near return pump, return nozzle looks like it blew out a few seconds of micro bubbles. Assuming this was non dissolved alk, let’s say best case scenario it all went to sand bed instead of landing on corals, will it eventual dissolve and become part of the water , or will it just lay on bottom like sand particles?
My take on it is that your TANK will tell what ALK you are going to run... and that is probably going to be close to the ALK that you get when you mix your choice of SW. I have been reading for years that stability is the key... but... then someone posts pictures of a tank looking great with an ALK of (value x)... and you will be tempted to chase that value and possibly disappointed. For me... lower ALK levels (7 is my target) are best and safer for SPS - even when I intentionally tried pushing nitrates up a little bit. But... there are others which much better tanks than mine who prefer different numbers.
And... per the OP... I would say an ALK of 6 is the lowest for SPS that I personally have experienced and found to be perfectly fine.
You are seeing undissolved salt or a precipitate. It will dissolve. Best leave it in the bucket with a power head for a day or however long it takes the mix to look clear before it goes in the tank.