Specific Gravityv - HELP!!!!

Just done a 40Ltr Water Change. That equates to around 30% Change. Will leave for a little bit to settle before doing water tests. Will post later
 
Everything looks slightly happier already apart from one of the clowns. The little guy is just staying down on the sand lookin as if tryin to swim but gettin nowhere. Occasionally stops and just sits on sand :(
 
Both clowns have white spots over there body, one more than the other, this is the one that is sittin at the bottom on the sand. The small regal and the firefish look fine and quite happy.

Bigger clown is swimming around as normal, but the small one is down on the sand. The corals have also picked up alot.

Still not done water para checks yet. Will do in the next hour or so.
 
Well since last post Ive lost a clown, anchor coral, and sponge. Other clownfish is in QT tank being treated. Hopefully with a full recovery.

Main tank is just going all to pot no matter what I'm doing.

Last water para after first 30% was as follows:

SG 1.024
PH 7.8
Alk 1.7-2.8 Range
Calc 430
Nit 0.1
Nat 50
Amm 0

After this this was when the corals were removed and the morning before tests taken the clown had died. I dont know if these have contributed to these paras.

Now I have done another 30% change giving the following paras

SG 1.024
PH 7.5
Alk 1.7-2.8 Range
Nit 0.3
Nat 20
Amm 0

Since I have done a 10% water change to try and get rid of the Nit and Nat but Im stuck with what to do about the low PH level. I know from what Amph said before about alk so when I can get the others right I will try this. Dont want to be doing too much at once, unless I should correct Alk now?

PS Water paras after 10% change will be posted in an hour or so.

ALso removed what I think may be a nasty crab, but not sure so removed anyway on advice from others. Can see another that looks the same.

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Yes, some xanthid crabs. I highly suggest permanently removing these.

One of your next priorities is a better alkalinity test kit. That kit giving a range isn't really what you want. See above recommendations.
 
Ok another that I know is there to try and catch next then. Thanks for the info Amp.

Water paras after 10% change as follows

PH 8.0
Asl 1.7 - 2.8
Nit 0.05
Nat 20
Amm 0.25
Temp 26
SG 1.025

OK. Ill get another kit when I get a chance. Elos or LaMotte, never heard of either so will get searching.
 
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