I'll have to repeat Dawn's call.The Dude said:i do water changes every 3 weeks. i went to my lfs and they said that the parameers were fine
Point is, without those numbers, there isn't much anyone can tell you.
Your lfs deserves a slap from me.:shake: You need to jot down the exact figures. I would advise getting your own test kit instead so you'll be able to know your water parameters without the lfs intervening by claiming 'it's fine/perfect', etc. API Freshwater Master test kit is one of the good test kits out there. Easy to use and accurate. Avoid test strips which are not accurate enough.