Petshrimp.com Discussion Forum

Hi all,

I would like to seek advice on this substrate that i bought online (see attached picture).

CARIBSEA Arag-Alive Hawaiian Black

Please advise on whether this item is suitable for Opae Ula?

I suspect too much light been given in the tank.

Yes but not recomended.

Depend on your country super mart, brand doesn't matter as long as it's distilled water (zero content).

Use a hydrometer to measure the salinity level a few hours after you top up, ideal range is from 1.010 to 1.012

The answer is No.

Extract from Mustafa article:

"It is important to top off with distilled/reverse osmosis (RO) freshwater periodically to replace water lost to evaporation."

Hi Paul, Thanks for your response. my tank was set up 4 months back as an upgrade from 1/2 gallon tank 8 years ago. There is nothing faulty on the hydrometer so that leaves with undissolved salt ? 2nd round i took out another another 1/3 of its volume and top up with distilled water and finally it d...

Hi everyone, Two questions for the experts.. Can i check with you all, why is my tank water salinity level kept increasing despite being only topping up distilled water ?? Originally it was 1.014. my tank is 3 gallons, i took out 1/3 of it volume and top up with distilled water. I measure the salini...