Carbonate Hardness (dKh)

[Pisces3473]

The guy at my lfs told me my carbonate hardness needed to be higher, closer to 200. It's currently 9 drops - 161.1 and my PH has dropped to 7.8, I'm using the API Reef Master Test Kit. I picked up some SeaChem buffer today and added a half cap to my 10 gallon. I retested and my PH is up to 8.0 but the carbonate hardness is still 161.1. Can anybody offer some input here? I'm wanting to add a Hammer to my tank but don't want to rush it, if the tank isn't ready. Also, is there a kit I can get to measure Iodine, Magnesium, Strontium, and other important trace elements needed for some of the more delicate corals?

 

[Huffers]

In a tank as small as 10 gallons you shouldn't worry too much about the addition of idione, calcium, magnesium and strontium. These elements will be replaced naturally when you do your routine water changes. Just make sure your using a reef salt and you should be set. Dosing these additives in this small a tank could be disastrous if you overdose.

Kent Marine does make a Nano pack that includes one bottle of PH buffer and Reef additives. I personally use it from time to time especially if my alkalinity gets low. You should be able to get it at most pet stores for around 15 bucks.

 

[Pisces3473]

Thanks that helps, any thoughts on the carbonate Hardness. according to many its right where it should be however according to my lfs it should be higher. I will retest later today, however is there a way to increase carbonate hardness without increasing my PH?

 

[Huffers]

We'll, carbonate hardness is this measure of alkalinity. Think of alkalinity as a "safety net" for your PH. The reason you want your AK around the 200 mark is because this will protect your PH from falling should any acidic substance be accidentally introduced. Over time your PH naturally falls as well. You should be able to find a buffering agent that will raise your AK without raising your PH. Like I said I use the Kent marine "nano reef" additives. One bottle is a buffering agent and the other bottle is full of additives like calcium, magnesium etc. I don't dose either of these often though. Here's a pic so you'll know what they look like if you wana pic some up. I buy them at petco.

 

[Pisces3473]

Thanks!