i'm not sure about that ph for the arowana... most places say 6-7 range and others say 7-8.... i don't really mind... mine's at an 8 even if the water come from my tap its at a 7 to 7.5 i believe... so nothing i can really do about it... except use my RO or buy a new house in a different area.... plus i need to change the filter or else i'm just adding ammonia to the tank.... been there done that.... not good... the fish were like not doing so hot so i just used the hose and i found out my RO filter was bad i need a new membrane... plus this is my 5th arowana
as quoted by me in the other thread
i'm on my fifth arowana first one i bought was impulse still had yoke sac (baby), second one jumped the tank though an opening on the top(4 inches), third one bad water change forgot to stop the syphon and refilled water way too fast so died of shock (1.5ft), fourth one got big and jumped the tank broke the glass lids off the tank so broken glass on the floor with arowana dried (2ft)
experience?... i'm full of it.... now hopefully this one is good... i learned from my mistakes and i share with you now.
1. pay the extra 10 bucks for a bigger arowana with no sac
2.cover all openings on tank no matter how small the hole is
3. partial water changes are good dont forget about your siphon tube while changing water
4. well covered with 1 gallon milk jugs of water on glass lids...
5. i'll tell you later down the line once i find out how this guy decides to leave me so far he's 5 inches and eats like a pig