Help!!!! Rays

You guys shd know by now I hand feed my PDR.
Usually I will move the water and the rays wilolo come to my hand. Yesterday night, they didnt come. Was very concern as the tot that they might have died struck me.
both was hiding in the dark corner of the pond. Used a stick to poke a little to see they are died. To my relieve, they moved alittle. My male was hanging by the side of the pond not moving much.
Called ppl I know who keep rays to see if they have similar experience.
A few days ago my mum put a little fertiliser on the potted plant arond the pond.
There was no rain so no worries that it will flow into the pond. Besides my mum said its just very little.
Tested the water for NO3, I must say its very very good, only 5ml.
I do not think they have mated as suggested by swome friends as usualloy the bite marks are on the side of the disc, my female have bite marks below the left eye, very bad (but i frealise it already last wk) although it getting worst. the left side of the female also have marks, not too sure if they are bite marks.
Besides my water level is max. 17" and my PDR are huge. Dun wanna say the size liao coz sum1 will say I over estimate. The female disc covers 3/4 of the bottom of my small bath tub aka pond

So how's your rays today?
Be careful abt the fertiliser .....will kill your rays
Increase the airation.(got such word or not hehe)

[naser90096]

bro, i dun have much experience with pdr and upkeeping a pond ... but might i suggest partial WC ? PDR are very sensitive to water quality, i had 2 died with me. Gd luck bro ... n keep us updated of their well being.

[tangmulong4488]

Originally Posted by Chai Teck Meng

So how's your rays today?
Be careful abt the fertiliser .....will kill your rays
Increase the airation.(got such word or not hehe)

got is aeration uncle chai

Originally Posted by tangmulong4488

got is aeration uncle chai

Thank you.
Too lazy to look up the dictionary

Originally Posted by Chai Teck Meng

So how's your rays today?
Be careful abt the fertiliser .....will kill your rays
Increase the airation.(got such word or not hehe)

Maybe just to add. my pond pump O ring leaking thus, created a small current in the pond.
But there is still flow from the outlet.
I didnt get to see them today as they were still hidding.

Originally Posted by naser90096

bro, i dun have much experience with pdr and upkeeping a pond ... but might i suggest partial WC ? PDR are very sensitive to water quality, i had 2 died with me. Gd luck bro ... n keep us updated of their well being.

Tested the water. Its the best of all the tanks I have

[RELAX]

change 1/3 of water everyday,for few days until u see improvement,the female damages seem to be fighting more than mating,if hv a space,maybe can consider temporary separate the male first

[aro99]

Originally Posted by RELAX

change 1/3 of water everyday,for few days until u see improvement,the female damages seem to be fighting more than mating,if hv a space,maybe can consider temporary separate the male first

u know best rite... ur bad exp. how any gd news?

Originally Posted by RELAX

change 1/3 of water everyday,for few days until u see improvement,the female damages seem to be fighting more than mating,if hv a space,maybe can consider temporary separate the male first

But the female seems to stay with the male.
The male have not injury at all.