Now you have me worriedAuballagh said:Oh.... fill water? :?
Wow, pure Reverse Osmosis (RO) filtered water to fill the tank with?!!
I've used RO as a source of makeup/evaporation replacement water. NOT the prime source! And yes, those riverine biotope 'Black Water' type aquarium folks are all about using RO water. But, whew... African Cichlids? You're gonna be using some serious additives to buff up the PH and General Hardness of pure RO water. And for a relatively smaller tank, with a heavy stocking load of fish?
I see a lot of Water Changes ahead, to dilute that Nitrate buildup.
Is your tap water quality so bad locally (Nitrates, etc...), that you have to utilize a home-built RO system to ensure the water is safe to use for your freshwater tank?
This is all because I have my Marine Head on always paranoid about using tap water :roll: I feel from now on it is tap water plus chloride removerAuballagh said:Oh no, you're not exactly wrong with this!
But with the RO, you might be just over-working it a bit. One of the beautiful things with fresh water aquariums is the almost UNLIMITED SUPPLY of (cheap!) water the keeper has available to keep water quality high in the tank. Because of that, using dechloramined stuff right outta the tap is typically the way most of us go.
Minor adjustments to water chemistry are made that way to the tap water. That is, to adjust a naturally soft water source? A bit of Epsom salt could be added to boost up general hardness, plus maybe a touch of baking soda to drive up the PH a little. And usually, that's about it. And, with a lot of fish in a smaller aquarium? You may be pushing some serious amounts of water in water changes to flush out and dilute Nitrate buildup in the aquarium.
So, keeping things as simple as possible for that work, will make it easier to do, and much more sustainable in the long run.
However you DO want to test your tap water. It's important to know what you are starting with. The only real problem that people sometimes face after testing, is when Nitrates are found in their tap water. That makes it tougher to keep them diluted out of the aquarium and kept at 20-30 PPM levels, if there are Nitrates already present in the water! In those unique cases, providing RO water to the aquarium is sometimes the only real way you can beat a problem like that.....
Does that help?