i realise due to photosynthesis oxygen is given off which fish can breathe in but i need another reason aswell
2007-03-17 08:18:43 · 8 answers · asked by Anonymous in Science & Mathematics ➔ Biology
Isn't oxygen a good enough reason? Cos it's the only one!
It also provides shelter and shade, but that isn't going to keep them alive.
Unless you have crocodiles in your tank.
2007-03-17 08:21:50 · answer #1 · answered by Dogsbody 5 · 0⤊ 0⤋
It oxygenates the water and also provides a hiding place for the fish
2007-03-17 20:06:27 · answer #2 · answered by nemesis 5 · 0⤊ 0⤋
-----Photosynthesis takes carbon dioxide (CO2) out of the water as well as putting oxygen (O2) into the water. The oxygen must come from somewhere, and a build-up of CO2 is bad for the fish. ---Jim
2007-03-17 15:45:02 · answer #3 · answered by James M 4 · 0⤊ 0⤋
The smaller fishes can hide in the weed so have a better chance of not being eaten.
Plus the fish eat the weed
2007-03-17 15:21:50 · answer #4 · answered by Anonymous · 0⤊ 0⤋
Besides oxygen plants also take carbon-di-oxide which get reduce and the waste so formed is utilise by the plants as nitrates.
2007-03-17 20:04:31 · answer #5 · answered by moosa 5 · 0⤊ 0⤋
It oxygenates the water
2007-03-17 16:14:34 · answer #6 · answered by Norrie 7 · 0⤊ 0⤋
They help filter the water by ingesting the nitogen and ammonia from fish doodoo.
2007-03-17 15:32:48 · answer #7 · answered by Anonymous · 0⤊ 0⤋
errm fish eat it?
2007-03-17 15:20:37 · answer #8 · answered by ? 4 · 0⤊ 1⤋