pH range for breeding CRS?

**Madmax** · 22nd Oct 2007, 22:26

What is the range of PH suitable for breeding CRS? I am very curious.

I measured my friend's tank and it is 7.5 (liquid PH tester). Her tank is flooded with CRS. There are 3 pregnant females. I am quite surprised actually.

**peter2883** · 25th Oct 2007, 10:02

Normally the range for CRS to live comfortably is 6.0 - 7.0 but I know for a fact that some Breeders would maintain their tanks at 6.5...

**michaelmah** · 26th Nov 2008, 19:27

my crs at about 5.8 ph , how ar?

**Fuzzy** · 27th Nov 2008, 17:08

Originally Posted by michaelmah

my crs at about 5.8 ph , how ar?

eh bufffer with pH up solution, or better, put in a little crushed coral and maybe some old sea mud.

**michaelmah** · 27th Nov 2008, 20:27

any pic of coral mineral.

thank

I am newbie.

**Crfan** · 28th Jul 2009, 23:51

Need some advice : Does anyone know this is safe for use in CRS tank in order to bring the PH down? Tried changing soil but not really work.

**Fuzzy** · 29th Jul 2009, 19:13

should be safe, but lower the pH very _slowly_
1.0 per 24 hours should be no problem. make sure you measure how far the peat lowers the pH first.

Personally I prefer using a pH down solution like the AquaMedi one. Gives you a lot more control.

**Piyayo** · 31st Jul 2009, 19:33

I use peat to lower Ph, for me works fine, but you have to control the Ph as it can go very low in one day, monitor the Ph and take away the peat when you reach the desired Ph, you will notice that in a few days it raises again, so put the peat back to the tank again, If you do so, controling the Ph, you will stabilize it in two weeks.

The first days with the peat, soak it in the tank for a few hours, and always monitor the Ph. I´m doing this in a 60 gallons tank.

Now my Ph is 6,5 at night, and 6,8 during the day.

My CRS are healthy and breeding.

Good luck!

**Crfan** · 3rd Aug 2009, 10:35

Thanks to Piyayo and Fuzzy for their replies! I thought no one was going to reply at all. Prefer using Peat as its not really a chemical solution.
Need to wash the peat first right? I will use amount of peat progressively, starting with the minimum amount and monitoring the PH before increasing gradually.....