What speed, frequency and time do you suggest?

Currently I had it set twice daily (kh) and calcium once. For about a minute each on speed two.

I'll test the water today and post results.

Doesn't the doser allow you to adjust volume in mL?

This one uses time setting and Approx dose volume. The theory is that when the pump ages and tube wears, the volume setting becomes useless and setting based on lengthening or shortening the cycle is more accurate.

It could be related to the chemicals being added to the tank? When I switched from my 2-part to the calcium reactor I had some swings in PH, ALK, Ca and MG. All of which I just dumped "estimated" amounts of each chemical to "balance" it out, nothing died in that process.

On another note, my refract went crazy on me and I ended up bringing my salinity upwards of 1.030+ then dropped it to 1.026 within a single day. Nothing died.

By no means is my method "right" in any way, so for anyone reading this... don't do this because I got away with it. But from my experience, these corals are fairly durable if your parameters swing within reason.

Alk start at 2000-30s- speed 2
2300-1:30- speed 2
0200-2:00- speed 2
0400-2:00- speed 2

Calcium I start at 0800 and basically the same schedule.

I test every couple weeks, and adjust accordingly.

I have a 72g mixed reef and have my doser adding 2 part, alternating every hour at speed 4 for 12 seconds. So it would dose part A at 12pm for 12 secs at speed 4 and then dose part B at 1pm at speed 4 for 12 secs and so on 24hrs a day.

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Your system seems similar to yours.

So you dose both 12 times each/day?

Pat please give us details on your system and dosing frequencies and times, can probably figure it out for ya, dont forget to post your times of day for dosing each

Steve

Unless they doser failed, I dont see how this is the dosers fault?